Banana Blondies

Browned Butter Banana Blondies. These are PERFECT blondies with a subtle banana flavor, topped with a brown sugar frosting that is INSANELY good!

These Browned Butter Banana Blondies with brown sugar frosting are OUT OF CONTROL delicious.


I am super into browning butter, just like any good food blogger is, I guess. And isn’t it a strange world we live in where food blogger is an actual job? Freaking crazy. Awesome, yes…but also crazy.


But you know what is actually NOT awesome….is buying a car when you are a food blogger. Filling out the “occupation” slot on the credit application is very confusing. To both me and the credit manager guy.

So like, do I put BLOGGER? That sounds so…I don’t know…not like a real job?

And then ALL THE QUESTIONS you get after you hand over the application…you make MONEY blogging? How does that work? Where does the money come from? How? HOWWW?

So yeah, I ended up putting “Website Publisher”, which I thought at theΒ  time sounded super grown up and profesh. Until the guy came out and asked me what that meant. And I had to say blogger anyway.

Anyway. Next time I will just write “Food Blogger” as my occupation with my URL next to it.

Let’s now talk blondies. With browned butter, because it’s my JOB.

Browned Butter Banana Blondies. These are PERFECT blondies with a subtle banana flavor, topped with a brown sugar frosting that is INSANELY good!

These are Banana Blondies. And they are simple simple. Promise.

Grab you a banana and some brown sugar.

Browned Butter Banana Blondies. These are PERFECT blondies with a subtle banana flavor, topped with a brown sugar frosting that is INSANELY good!

Then melt your butter. Or brown it if you’re nasty.

Mix the butter and brown sugar together.

Browned Butter Banana Blondies. These are PERFECT blondies with a subtle banana flavor, topped with a brown sugar frosting that is INSANELY good!

Mix in the rest of your ingredients…including the banana, that you need to mash, btw.

Browned Butter Banana Blondies. These are PERFECT blondies with a subtle banana flavor, topped with a brown sugar frosting that is INSANELY good!

And then spread it in to a lined pan…

Browned Butter Banana Blondies. These are PERFECT blondies with a subtle banana flavor, topped with a brown sugar frosting that is INSANELY good!

Bake it up for about 25 minutes. And if you want (you want) make some brown sugar frosting. It’s so yum. and when they’re cooled spread it all up on there…

Browned Butter Banana Blondies. These are PERFECT blondies with a subtle banana flavor, topped with a brown sugar frosting that is INSANELY good!

I swear you need to make these. They are THAT good.

Browned Butter Banana Blondies. These are PERFECT blondies with a subtle banana flavor, topped with a brown sugar frosting that is INSANELY good!

If you like banana stuff, check out these other recipes I’ve got:

Banana Bread Crumb Cake

Brown Sugar Banana Bread

Banana Bread Cookies

Peanut Butter Cup Banana Bread



makes 16 blondies



  • 1/2 cup butter, melted and if desired browned
  • 1 cup light brown sugar
  • 1 egg
  • 1 1/2 tsp vanilla
  • 1/4 tsp salt
  • 1 cup flour
  • 1/2 cup mashed banana (1 medium banana)

Brown Sugar Frosting

  • 1/4 cup butter
  • 1/2 cup light brown sugar
  • 2 Tbsp milk
  • 1 cup powdered sugar



  1. Preheat oven to 350Β°. Line an 8×8 baking dish with foil and spray with cooking spray. Set aside
  2. In bowl of stand mixer combine melted (or browned) butter and sugar. Mix until combined. Add in egg and vanilla and continue mixing until incorporated. Stir in salt, flour and banana until batter is smooth and even. Spread in prepared pan.
  3. Bake for 25-30 minutes until center is set.
  4. Transfer pan to wire rack to cool.
  5. Frost the blondies when they are mostly cooled.

Brown Sugar Frosting

  1. In a medium saucepan melt butter. Add brown sugar and milk and stir until mixture comes to just a boil. Remove from heat, allow to cool for 5 minutes.
  2. Stir in powdered sugar with a whisk.
  3. Spread on top of blondies and allow frosting to set and blondies to cool completely before cutting into squares.


If you choose to brown the butter, melt butter in saucepan and continue cooking, once it’s melted by swirling the butter in the pan until butter reaches a deep golden brown color.

Adapted from Smitten Kitchen.


126 Responses

  1. I love how supremely moist these babies are! My #1 fave thing to make is blondies. In any way I can. 1 stick of butter, 1 c of flour, 1 c brown sugar…you can never go wrong. Genius to put bananas in them!! And the frosting. Brown sugar frosting is the best! pinned

    you make MONEY blogging? How does that work? <— if I had a nickel. I just tell people now that I'm a writer. Or a photographer. It's easier. πŸ™‚

  2. I’m just shocked he didn’t know who you were. Can’t believe you had to explain yourself. Ugh. Duhhhh, I make the best desserts on the internet. I’m S-H-E-L-L-Y.

    I think these are going on the list to make this week! Pinned!

  3. Love sheet cakes! Blondie are even better with bananas You are a blogger fail, you simply are too good for titles. There really is a lot of stigmas around blogging too; too bad they fail to see who great is are as an individual artist

  4. Haha! I always take a deep breath while writing “blogger” on everything…the last time I wrote it was on my medical chart, and the first thing I got was “you’re a blogger? So do you cater?” Um, not even close to the same thing.
    I’m totally drooling over these. I want brown sugar frosting on everything! Mostly just my fingers…

  5. jud

    These look and sound delish. Definitely going to make them soon!

    Btw…I’ve had a lot of trouble loading your page lately. I haven’t had problems with any others. Wonder what is going on?

  6. Ha! I love it. So true. I tell people I’m a recipe developer and food photographer…which is technically true? Kind of?

    I want to shove all these blondies in my face!

    And I’ve yet to have cauliflower rice, kale smoothie, or zucchini noodles. So there.

  7. I feel like a total tool when people ask me what I do. And then it’s all awkward because they’re like “that’s your JOB?? You actually make money from that?” Nervous laugh ensues and it gets awkward real quick. Aaaand this is why we drive old crap cars. True story.

    Anyways. These blondies looks amazing.

    That is all.

    {talk about awkward…..cough cough….this comment…..cough cough…..}

  8. Lynae

    Shelly, Next time, just state, “Sugar Queen” or “Butter Master”. I too have one of those jobs that no one understands. I do sales for a web-based company that no one local has heard of. *sigh* It’s so much easier to just tell people I’m a welder.

    Please keep these wonderful posts coming!


  9. Lynae

    Shelly, Next time, just state, “Sugar Queen” or “Butter Master”. I too have one of those jobs that no one understands. I do sales for a web-based company that no one local has heard of. *sigh* It’s so much easier to just tell people I’m a welder.

    Please keep these wonderful posts coming!


  10. OG

    These were so delish!! The only thing for me was that it was a bit too sweet, and I didn’t even use the recommended amount of sugar, I used less, so next time I’ll use even less. But otherwise, wow!! added to my favorite dessert list. Thank you!!

      1. OG

        Ohhh also anyone who’s vegan, could use about 1/2 tsp baking powder and 2TBSP unsweetened applesause, I did this and it worked for me!

  11. Kelly

    These are absolutely delicious! The blondies are wonderful, but loved them even more with the yummy frosting!! Thank you for another fantastic recipe!

  12. Jennifer Valero

    I made these and I’m making them again to share with the neighbors (only a few..) They’re like glorified banana nut bread. Very moist and the icing was…well, the icing on the cake. I’ll probably never make banana nut bread again. Just these.

    1. Shelly

      I always use salted, but it’s really a taste preference.. if you use unsalted you may want to adjust the amount of salt in the recipe!

  13. Jennifer Parker

    Oh my goodness, I just made these barely and they are heavenly. The frosting is so so so good. The only change I made to the recipe is that I added chocolate chips to the blondie because I am a die hard banana-chocolate fan.

    1. Amy Corlett

      I know this is a really, REALLY late reply but I’m just finding this recipe now. I doubled but used 2 8×8 foil pans from the dollar store.

  14. Vicky

    I love, love these blondies and make them all the time! I use 1/4 cup of oil and 1/4 butter to make them marginally better for me (or so I tell myself). I also substitute white whole wheat flour for all of the regular flour and they are still so gooey and yummy. Thanks for this wonderful recipe!

  15. So I am sure brown sugar buttercream is awesome BUT have you tried peanut butter frosting atop these blondies because anything peanut butter and banana is AWESOME SAUCE, no doubt. Anyways, love you blog and all your sugary deliciousness. Can you do me a favor and follow my very inconsistent blog. pretty please and thank you

  16. Kristy

    I doubled the recipe and used a 9×13 plan…FABULOUS~ I always freeze bananas when they get a bit ripe and I don’t have time to bake that day. This was a perfect way to use them~ They look nasty when they thaw but are perfect for this application. Thanks so much for sharing!

  17. Annie

    Oh my word! These blondies are amazing! Mine turn out more like a dense banana cake (which isn’t a bad thing) and this frosting is to die for! This is a recipe for keeps! I’m already making it for the second time in one week. Delish!

  18. Chelsey

    I was wondering how long these are good for. I would like to make them and send them in a care package to my brother in Afghanistan. If not do you have any recipes that are care package friendly?


  19. Melissa

    Made these the other day, and omg they are Amazing! They’re moist, super flavourful and so easy to make. The brown sugar frosting is to die for! My kids Loved them too. Pretty sure I’ll be making another batch this weekend ????

  20. Victoria

    OH MY GOODNESS!!! These came out so moist and delicious! My husband couldn’t wait to have more! He asked me to add this to the favorites list! 5 Stars!

  21. Rachel

    Curse the gods that I’ve lived the first 34 years of my life without this recipe! Holy shit these blondies are beyond delicious!
    On a whim I doubled the recipe to use up more bananas (thank god I did!), and substituted 1/4 of the flour for almond flour (just because I’m trying to use it up).
    You need to win some sort of award for sharing this recipe!

  22. Three words! OMG! ..or is that three letters?! ..these are ridiculous, like in freaking amazing! I can’t get over how moist they are and how just one banana,(ripe as heck mind you), brought such banana flavour to these! your blog, love your recipes!

  23. Kristen

    Shelly – these were so delicious! My sweet-tooth of a husband practically gobbled down the entire pan. My favorite part was how quickly it all came together. I was craving something baked late one night and these took no time at all to whip up and throw in the oven. I only had dark brown sugar on hand, so I reduced it to 3/4 cup and I used 1 tsp vanilla + 1/2 tsp almond extract to bring out the banana flavor. I also added 1/2 cup chopped pecans to the batter and sprinkled a few more on top of the warm glaze. I will definitely be making these again – thanks so much!

  24. Ronda

    Just made these banana blondies tonight at my job- I cook dinners at our community center. Everyone raved about them. They were so easy and most importantly incredible delicious! The only change I made was I added a bag of mini chocolate chips to the batter. Oh my – yummy! Thanks for the great recipe!!

  25. Theresa Ali

    I was a little nervous about baking these with no baking powder, but they came out just fine, super moist and yummy! I also doubled the recipe and baked them in a 9×13 pan with no problems. The only downfall is these are so good you might eat them all yourself!

  26. I made theses last night-very moist,however I would have tweaked the recipe a little ie;more banana flavoring-perhaps some banana extract in the frosting?

  27. Kaitlyn

    I made these for my boyfriend today and he said that if I ever make them for anyone else he would be so mad! They were fantastic! I did add a little vanilla to the icing because I thought it tasted like powdered sugar.

  28. I’m going to give this recipe a try today. My tweaks will include doubling the recipe, using gluten free flour (for my mom, who has Celiac), adding dark chocolate chips, and probably adding a bit more banana – depending on how things go. I’ve read a lot of “there isn’t enough banana in here” complaints so I want to try to remedy that. I’m not a blogger, just an artist, but I do enjoy baking and tweaking recipes until they’re all my own~

    I’ll try to remember to come back with my results!

      1. Doubled the recipe, shouldn’t have doubled the frosting… My frosting ended up being a half-inch thick on top of the blondies once I had cut them! The Gluten Free flour didn’t make it dry as I had feared, they were still perfectly most! Even enough that they were a bit crumbly and had to be eaten with a fork. They just had an ever-so-slight grainy texture to them that wasn’t really noticeable at all. I didn’t add any more banana, and despite my vanilla blunder (I may have read tablespoons instead of teaspoons…), they came out tasting perfectly banana! I did add the chocolate chips, bitter dark chocolate, and they added a layer of complexity to the flavour that balanced out all the sweetness perfectly. They ended up being a huge hit, and we will absolutely be making these again! I’m ready to try the marshmallow blondie recipe I saw next!

        Oh, I also used dark chocolate almond milk in the frosting (I have a family full of food allergies, dairy is another one), and it made the texture of the frosting a bit more… Glaze-like? Kind of reminded me of fudge almost. But the flavour of it came out butterscotchy, which was also pretty nice! Definitely no “It tastes just like powedered sugar” here!

  29. Amy Corlett

    These are delicious – haven’t gotten around to making the frosting yet and half the pan is gone! I made a 2nd pan for friends, so they will get the frosting. I think toasted pecans would be a nice addition, maybe break up the sweet a little. But they are just wonderful. A note: browned butter is super hot. So I had to walk away and let everything cool a bit before adding eggs.

  30. Kellie

    Delicious! I made these for a gathering and they were a huge hit! I doubled the recipe for a 9×13 pan and happened to have an extra banana so I used 3 instead of 2 … it resulted in what would be a “fudgy brownie” type texture. SO good! I opted not to make the frosting because I threw in peanut butter m&ms and whoppers because why not? They were gone in minutes. Definitely adding this to my arsenal! Thanks!

  31. cat

    These are better than any banana bread you could ever eat – I’ll never go back to the regular kind now. My frosting however turned out WAY too sugary… so think I will leave it off next time.

  32. Jen

    oh. My. God. These were to die. I did double in a 9×13. Will definitely make again. The frosting was fab, but really, truly, they don’t need frosting. They are perfect as is. Maybe just a scoop of ice cream!!

  33. Manuela

    I’m loving this blondies! I’d like to know what do you mean by “Brown sugar, light”
    I’m from Chile, southamerica, and I’m not sure there is light Brown sugar available at my local grocery Shop. I was wondering if I could replace it with regular sugar instead

    Thanks a lot and definitely pinned!

  34. Jamie

    Oh wow! Just got these out of the oven and frosted them with my cream cheese buttercream. ..these blondies are the real deal. Moist, delicious and with the right hint of banana! Definitely a keeper!

  35. sarah

    Just made these today for a charity bake sale at work. They smell and look amazing! Might have to whip up a batch for myself.The frosting is also delicious, a little too sweet for my liking though.

  36. Kelly Lombardo

    OMG, how could something so simple be so freaking AMAZING. I made these yesterday morning and by noon I had eaten at least 1/3 of them. I new I was in trouble so I had to give them to my handyman or I would have polished them off by the end of the day. I didn’t really make any changes other than adding a whole banana. I did the brown butter version for the batter only and it was nicely balanced with the banana flavor. The frosting is crazy good and super sweet, just how I like it.

  37. laura

    Mine came out a little denser than those in your photos. The flavour’s delish though. Any suggestions for correcting the texture?

  38. Rachel Pemberton

    Could I add some oats for fibre and goodness??? How much do you think???
    They look amazing and can’t wait to try. Love your site. Thanx all the way from Perth Western Australia xxx

  39. Cassandra

    Absolutely delicious. I’m making them right now for the 4th time. Each and every time people love them. My only criticism is there are FAR from 16 normal servings. Even 12 seem small. Maybe I SHOULD only eat a 16th, but that ain’t gonna happen πŸ™‚ lol

  40. Chiara

    Hi, I’m not used to Cup, may I ask you for the quantity of each ingredients in grams, please? πŸ™‚ This dessert looks amazing!

  41. MissMo

    Just made these yesterday and I’m tucking the recipe away for future use! These yummy little squares taste like a dense banana snack cake with a delish caramely frosting. Use the foil lined pan and refrigerate before cutting and they cut really neatly and easily.

  42. Katherine

    I was a bit skeptical about making these because they are so simple, but I have SO MANY frozen bananas sitting in my freezer that I decided to give it a shot. Wow am I glad I did! These things are amazing! I doubled the recipe because I needed to get rid of more bananas and was bringing them to a potluck. I also used 3 bananas instead of 2 and added vanilla to the frosting. The bake time ended up being about 45 minutes and they were just perfect. Thanks so much for the recipe!!

  43. Catherine

    I think I just won these at a silent auction fundraiser…holy smokes are these good!! I looked up the recipe–these are it. Crack. Thank you! Can hardly wait to make these. Divine.

  44. Laura Stokes-Gray

    Next time you buy a car, bring a batch of these for the salesperson! Bring some cookies/goodies every time you take the car in for service. Talk about making friends!

  45. Shelly, I just found your blog because one of my son’s teachers baked these for a school bake sale. I bought one, ate it and immediately began tearing through social media to track the baker/recipe. These. Are. So. Good. I cannot wait to make them myself!

  46. Kelli

    I made these today and they taste great however my batch came out kind of flat. Is there a trick to getting them to rise or would it be ok to add some baking powder to the recipe?

    1. Shelly

      I really love the extra flavor that browning the butter gives these. Certainly you could use melted butter, but browned makes them better πŸ™‚

  47. Angela @ Movable Feasts

    Absolutely delish! I followed your recipe to the letter the 1st couple times I made them, but changed it up a little this last time when I made a triple batch. I subbed out 1/2 c of butter for 2/3 c of peanut butter and reduced the brown sugar to 2 c and added 1/2 c of white sugar – making it 2 1/2 total cups of sugar instead of 3 c. I also made a cream cheese frosting instead of the brown butter. I can’t decide which version is better…. they are both amazing!

  48. Laurie Reilly

    I just made these. Browning the butter is a must. I also browned the butter in the icing. Wow! So much flavor! It’s like a butterscotch banana blondie. Wait until my 3 teenage boys and their friends taste these! It’s a good thing I made 2 batches.

  49. Deb

    I just made these and forgot to mark recipe went to go back gone!! I panicked couldn’t remember who posted! Found after looking for 10 minutes you can bet your bottom bippy I got it marked now!!! Lol? Thanks I had bananas needed to be used so they are in the oven!!.

  50. Amber

    Hi. Silly question by novice baker in South I use self raising flour or cake flour which has no baking powder added?

    Looks delish.

    Many thanks,


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  52. Nini

    Thanks to share with us your great recipes. I have to try this recipe… Please give me the quantities in grs.. Here in France we speak in grs.

  53. Nini

    Thanks to share with us your great recipes. I have to try this recipe… Please give me the quantities in grs.. Here in France we speak in grs.

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  60. BooksandBeaches

    Today make the second time I’ve made these deliciously addictive delicacies. SO good! This recipe is going in my regular rotation when I have ripe bananas! Thanks for sharing!

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