3 Ingredient No Bake Peanut Butter Oat Squares

3 Ingredient NO Bake Peanut Butter Oat Bars...SO easy, only 3 ingredients!

These simple 3 Ingredient No Bake Peanut Butter Oat Squares can be thrown together in minutes. Use all natural/organic ingredients, if you prefer, for a healthier version! Either way they are simple are delicious.

Easy can not even describe these bars.

And simple is so over-used…by me especially…that I’m afraid you might not buy it.

But I promise ya.

These are the simplest, easiest, no brainiest bars ever to be.

There are literally 3 ingredients, no baking…only measuring. And you only have to measure 3 things, so…

PLUS, these 3 Ingredient No Bake Peanut Butter Oat Squares are kinda-sorta not even that bad for you!


I’m certainly not going to call them healthy…because there are health police out there who like to assure you that Peanut Butter from Skippy isn’t so health-ful.

But in my world, these are the perfect treat for my kids after school…full of fiber and protein, plus the honey makes them sweet and delicious.

So yeah. Try them.

3 Ingredient NO Bake Peanut Butter Oat Bars...SO easy, only 3 ingredients!

See..3 ingredients…

3 Ingredient NO Bake Peanut Butter Oat Bars...SO easy, only 3 ingredients!

Also, trying to get honey out of a huge container when there isn’t much left is pretty much the worst day of my life.

But I overcame.

3 Ingredient NO Bake Peanut Butter Oat Bars...SO easy, only 3 ingredients!

I heated my honey and peanut butter together so they would be smooth. You can totally do this in your microwave too.

3 Ingredient NO Bake Peanut Butter Oat Bars...SO easy, only 3 ingredients!

Then just mix in the oats. Also, yes, you could use quick oats, but they are cut and smaller in size (hence why they cook faster), and I prefer the large whole oat in these. Whatever.

3 Ingredient NO Bake Peanut Butter Oat Bars...SO easy, only 3 ingredients!

Kinda pretty, yes?

3 Ingredient NO Bake Peanut Butter Oat Bars...SO easy, only 3 ingredients!

Then press the mixture into a lined 9×9 pan, that is sprayed lightly with cooking spray to prevent sticking…

Let the mixture set up. I popped mine in the fridge (and actually stored them there too to keep them firm). Then cut into bars!

3 Ingredient NO Bake Peanut Butter Oat Bars...SO easy, only 3 ingredients!

Again, if left at room temperature they will soften a bit, so I like to keep mine chilled…but if you prefer them softer and gooier go for it!

3 Ingredient NO Bake Peanut Butter Oat Bars...SO easy, only 3 ingredients!

So yep. 3 ingredients!


4.8 from 32 reviews
3 Ingredient No Bake Peanut Butter Oat Squares
makes 20 squares
  • 1 cup peanut butter
  • ½ cup honey
  • 3 cups rolled oats
  1. Line a 9x9 pan with foil. Spray lightly with non-stick spray.
  2. Melt the peanut butter and honey together until smooth, either in the microwave or stove top. Combine mixture with oats.
  3. Press into prepared pan. Place in refrigerator until set. Cut into squares.
I like to store mine in the refrigerator because they can get a bit soft.


Here are a few other 3 Ingredient/No Bake recipes I have…

keylimepiedip Key Lime Pie Dip…3 Ingredients AND it’s Fat Free!

S'mores Snack Mix..only 3 Ingredients!

This S’mores Snack Mix is also only 3 Ingredients!


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170 Comments on "3 Ingredient No Bake Peanut Butter Oat Squares"

Sort by:   newest | oldest | most voted
April 29, 2014 7:29 pm

Easy, 3 ingredients, and perfect! And PB! Always a win :) pinned

April 29, 2014 11:47 pm

Oh my goodness, those honey containers from Costco will be the death of me! So frustrating, especially cause the honey gets firm so fast. I will definitely be using a fresh container of honey for these babies!

May 1, 2014 2:51 pm

Meriem, I just saw this and wanted to share that you can soften a container of honey by putting it in the crockpot, fill crockpot with water to height of honey, turn on low and just let it go until the honey is liquid again. Doesn’t matter if the container is taller than the crockpot — leave the lid off. Works like a charm.

February 5, 2016 8:38 am

Raw honey takes longer to solidify…and simply soften by putting in hot water for 10 or 15 minutes.

January 8, 2015 11:27 am

They get hard because they are using corn syrup as a filler.

January 10, 2015 9:19 pm

Actually, pure honey can and does go hard. My grandpa used to keep bees and my dad still has honey from it; it’s more than 20 years old, and it’s hard.

January 27, 2016 8:48 am

Raw honey does go “hard”. It becomes crystallized. That’s a good thing. Means it is raw. Store honey does not because its pasteurized to death! You can set your honey in hot water or let the hot water run on the bottle each time you use it and it will go back to smooth. My husband and I are beekeepers.

February 3, 2016 9:17 pm

Put container in microwave and heat about 30 seconds, this should soften the honey.

February 9, 2016 8:19 pm

Would that not kill the natural enzymes and all the other goodness of raw honey?

April 30, 2014 2:21 am

Lovely! So simple and yet looks so yum!

April 30, 2014 6:30 am

This is so great! It’s heart healthy and delicious. Best combination of all possible worlds!

April 30, 2014 7:06 am

Such a great treat and only few ingredients! I must try these bars :)

April 30, 2014 7:25 am

These bars are amazing! Only 3 ingredients? Perfect :-)

Shannon @ Bake.Frost.Repeat
April 30, 2014 7:56 am

Wow. These look great. I’m totally making them this weekend. I think I found something my incredibly picky 5 yr old will eat!

April 30, 2014 9:00 am

Love these!! My husband buys honey like he’s responsible for keeping bees employed, so I definitely have all the ingredients on hand :)

April 30, 2014 10:19 am

I have these three ingredients in the pantry – they look fabulous!

April 30, 2014 10:37 am

These 3 ingredients are 45% of my diet. Time to put ’em all together into a dreamy dessert!

April 30, 2014 11:01 am

Bless you!!! I am off refined sugar this week, so I haven’t had a treat of any kind since Saturday (this is BIG for me.) I can totally do these!

January 12, 2015 9:41 pm

You can also try 1 cup of peanut butter, 1 cup of sugar and 1egg for gluten free peanut butter cookies. Bake at 325* for 7-8 min. Delicious!!

February 7, 2015 1:27 pm

Replace the sugar with 3/4 cup of stevia and you sugar/gluten free PB cookies.

April 30, 2014 11:51 am

Easy and simple, indeed! Love these.

April 30, 2014 12:20 pm

3 ingredients with 1 of them involving peanut butter?! I am all over this one!

April 30, 2014 1:13 pm

yummm….. that looks delicious!!

April 30, 2014 2:19 pm

Yay!! A dairy-free recipe! I often adapt many of your recipes to make them dairy-free (which is NOT always an easy task!!), so I’m excited to try this one–sans-adaptations!!

April 30, 2014 2:21 pm

I laughed so hard when I saw your honey container…I can totally relate!

April 30, 2014 4:20 pm

welp, I need these in my life. pinned!

April 30, 2014 6:00 pm

I have been craving rice krispie treats lately and these look so gooood! Plus they’re healthier than krispies, right? 😉
Tonight we will have them for dinner!
Well, maybe after dinner….

Shelly, btw, I have a worldwide giveaway with 2 winners of the cutest lil bee salt/pepper shakers to honour Mother’s Day and benefit the effort to save the bees. Please stop by my blog when you get the chance. Good luck!


I just can’t get over how easy these bars are!! They looks like they would take hours! And 3 ingredients?! Can’t beat that! They looks so good!

April 30, 2014 9:37 pm

There has to be a better way to package honey, it’s the worst getting out of those squeeze bottles! This recipe seems totally worth the effort, so simple and delightful!

Deb Malpass
April 17, 2015 8:55 am

I keep mine in a wide mouth mason jar. I can’t wait to try this!

April 30, 2014 10:37 pm

These sounds delish!!! My son is allergic to peanuts… Do you think this will work with sunbutter?!

May 1, 2014 10:54 am

Umm these sound divine! I think I might need to make a tray at nap time!

May 7, 2014 4:47 pm

are these crunchy or chewy?

May 9, 2014 2:10 pm

Haha. The health police. I feel like I can never post anything with regular peanut butter. It has to be natural because I know even when I post a warning saying, “This recipe won’t work with natural!” people will make it with natural anyway and then be unhappy with the results. That’s because natural sucks for baking. That’s the end of my peanut butter rant. 😀

And love that these are no-bake! This is something I’d make at 11:49pm and then not even bother forming into bars. A spoon works well enough for me.

August 14, 2015 11:03 pm

That is exactly what I just did at 10:49. I hope the natural peanut butter will set up since there’s no baking involved. :)

May 23, 2014 10:06 am

Has anyone tried adding dark chocolate chips to this? If so, would you melt them first along with the peanut butter and honey or mix them in whole with the oats? Or would melting and drizzling along the top at the end work best?

January 29, 2016 4:13 pm

I made mine with almond butter instead of peanut butter and I pressed chocolate chips and chopped pecans into the mixture before putting them in the refrigerator to set. Can’t wait to eat them!

May 30, 2014 3:46 pm

Yum! Just made these and I can’t stop eating! I added a few extra things I had on hand to health them up even more… On the softened PB honey stage I added a scoop of protein powder and scoops of both chia and flax seed, as well as some Cacao powder for a little chocolate sensation. Also I did half honey and half melted coconut oil for the honey part, and it came out perfect with a nice hint of coconut! They are so delish and guilt-free! Will definitely be adding these to the regular rotation.

February 2, 2015 12:47 pm

Lara, do you have the nutritional information on your modifications? They sound yummy!

June 8, 2014 8:17 am

I just made this because I love the ingredients, but when combined…. not so much. I think it’s the texture I’m not liking and it’s very dense.

June 18, 2014 1:46 am

This recipe is very tasty.

I don’t know if it’s because I used a different brand of peanut butter (used Peanut Butter & Co) than you or what it is, but my honey/peanut butter mix did not cover 3 cups of oats, it only held about 2 and 1/8 cups of oats. Neither did it get that nice gooey look like yours has got.

In the future I may try adding coconut oil like “Lara” said in the comments here.

I also used old fashioned oats. Yum.


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July 10, 2014 1:04 pm

Would maple syrup work in place of honey?

July 24, 2014 3:54 pm

Perfect! We are experiencing extreme heat these days in iowa, and I’ve been trying to find a no bake peanut butter bar recipe to fill a craving, but they all call for more butter than PB, and tons of powdered sugar, neither of which I keep on hand! I used natural PB, as this is what I usually use, so some of the healthy police might be ok with it (though who wants to be worried about that when it comes to dessert?), but I DID proceed to cover the whole thing in melted dark chocolate… Ran out of honey,… Read more »

August 11, 2014 3:08 pm

Thanks for the recipe! I have tried it, but something isn’t right. Can you maybe, please, write amounts of ingredients in grams? :)

August 11, 2014 5:14 pm

Just an alternative–use toasted oat flakes for an even more delicious treat and add almond butter and toasted almond slices for an even better version. One caution–almond butter is runnier than peanut butter so you may have to use less than the recipe calls for.

August 11, 2014 5:20 pm

BTW–for those complaining about the Costco honey containers–save a few jars from whatever, clean well and use for the honey. They are much easier to liquefy the honey in and you don’t have to worry about plastics-chemicals leaching into the honey when you try to warm it up. I am trying bit by bit to use less plastic in my home because of all the negative consequences–the reliance on petroleum to create the containers, the problems with recycling them, the endocrine and hormone disruption they cause and all the other problems associated with plastic in the environment.

August 15, 2014 4:36 am

Ladies, can someone, please, share this recipe meashured in grams?
Thanks a lot!

September 6, 2014 5:33 pm

Cup to Gram Conversions Do the Math 1 ounce = 28.34 grams 1 pound = .453 kilograms 1 g = .035 oz 1 kg = 2.2 lb 1 fluid oz = 29.57 milliliters Measuring Spoons 1 Tablespoon = .5 fluid oz or 14.79 ml 3 tsp = 1 Tablespoon 4 Tablespoons = 1/4 cup 16 Tablespoons = 1 cup More Quick Conversions 1 c chocolate chips = 152 g 1 c cocoa powder = 128 g 1 c walnuts, chopped = 122 g 1 c walnut/pecan halves = 99 g 1 c shredded coconut = 71 g 1 c solid… Read more »

August 24, 2014 7:33 am

These look great! I’m pinning so I can give them a try!

August 24, 2014 8:08 pm

So yummy and easy!

August 25, 2014 7:41 pm

I love high fiber and easy. Thank you for this. Just made them, can’t wait to try them.

September 1, 2014 6:03 pm

I mixed in half a block of cream cheese into the recipe. They are so good!


[…] Peanut Butter Oat Squares are a no-bake, three ingredient recipe that you don’t want to miss! […]

September 27, 2014 5:52 pm

Can you use white Karo syrup I don’t have honey

October 6, 2014 4:13 pm

I only used 2 1/2 cups of rolled oats and it was so dry. Disappointed. :/

November 3, 2014 12:34 am

Just got done making these. They were sooo good.

November 26, 2014 12:36 pm

I have the Karo syrup question too. I’m snowed in and don’t have enough honey…can I use have honey and half light karo?

December 14, 2014 12:53 pm

Too much peanut butter. It made the bars really dense. Some advice for the person making this: don’t put 1 cups of peanut butter.

January 4, 2015 1:19 pm

I make with organic oats, organic maple syrup, organic peanut butter & add chopped peanuts, pecans, almonds or walnuts.

Also dried fruits minced is good too just make sure it’s real dried fruit & not the sugar and chemical dried fruit. I use maple syrup because I’m not a fan of the taste of honey.

I am going to try these with almond butter next time and maybe cashew butter the next to see how they taste. Keep on cooking;)

January 4, 2015 1:22 pm

Oh I forgot I made these for a friend & she doesn’t love oatmeal so I cut the oatmeal in half and added her favorite organic crunchy cereal to it with a dash of cinnamon because she loves it. She said they were great.

Allison Vardeman
January 6, 2015 6:46 pm

Has anyone made these with natural (fresh ground) peanut butter?

January 7, 2015 8:25 pm

Could I use quick oats??

January 7, 2015 8:32 pm

Does anyone know how we can get a nutritional breakdown. I am into healthy eating and watch my.sugar intake closely