Buckeye Brownies

Buckeye brownies are an easy brownie recipe filled with creamy peanut butter.

These Buckeye Brownies are an easy chocolate and peanut butter brownie recipe based on the popular midwest candy called Buckeye Balls aka Peanut Butter Balls.

Buckeye Brownies are an Easy Chocolate and Peanut Butter Brownie Recipe!

If there was ever a brownie recipe that got a standing ovation, this might be it. Combining peanut butter and chocolate tends to do that to people. I mean, it isn’t a classic flavor combo for nothing…and this is coming from a girl who just ate a spoonful of peanut butter with chocolate chips on it for an afternoon sweet treat. I mean I am kinda-sorta known for some pretty epic chocolate-peanut butter desserts like Peanut Butter Balls, Buckeye Brownie Cookies, and Peanut Butter Cup Brownie Cheesecake to name a few!

What Are Buckeyes?

Buckeyes are popular in Ohio, as the Buckeye is the state tree! This brownie recipe is a spin on Buckeye Balls which are peanut butter balls that are only partially dipped in chocolate, leaving the peanut butter showing on the top. That way they look like the nuts from a Buckeye tree.

So long story short, this brownie recipe is just a fun spin on Buckeye Candy turning them into a rich, chewy, fudgy peanut butter and chocolate brownie!

How To Make Buckeye Brownies

How Do You Make Buckeye Brownies?

I started this recipe with a boxed brownie mix to make things easy. You could certainly use a brownie recipe from scratch if you prefer, just make sure the recipe is supposed to be baked in a 9×13 pan and the batter is on the thick side so you have enough brownie batter to hold the peanut butter filling.

  1. Once you’ve made your brownie batter, stir in some chopped peanuts to give a little extra crunch. You can leave the chopped peanuts out if you don’t like nuts in your brownies, no problem!
  2. Then mix together some peanut butter and sweetened condensed milk. This makes a magic peanut butter filling.
  3. Press half the brownie batter into a greased 9×13 pan, and then pour the peanut butter filling on top of that! Drop the remaining brownie batter onto the filling and lightly press it in. When these bake they will look pretty and marbled on top!
  4. Bake them for about 25 minutes until the edges are set, and then let them cool!

Can You Freeze These Brownies?

Yes, absolutely! Buckeye Brownies can easily be frozen. Let them cool completely, and you can freeze them in the pan, or cut them into bars and freeze them like that. Just make sure they are airtight and they will be great for up to a month! Let them thaw out at room temperature for eating.

  • If you freeze them in bars, just place them in a flat layer in a zip-top bag, with a piece of parchment paper separating the stacks. Or you can also freeze them in a large plastic container.
  • If you choose to freeze them in the pan, allow them to cool and cover the pan in foil. Cut them after they have thawed out!

Buckeye Brownies are a chocolate and peanut butter brownie recipe

Buckeye Brownies are the Perfect Brownie Recipe for Peanut Butter Lovers!

These brownies come together so quickly, but are really a showstopper! The thick peanut butter filling sandwiched in between the two brownie layers is sweet and creamy. And like I said before, you can absolutely omit the chopped peanuts if you don’t want any crunch.

Looking for more brownie recipes?

(This post was originally published in 2012 and updated in 2019)


Buckeye Brownies

  • Author: Cookies & Cups
  • Prep Time Prep Time: 10 minutes
  • Cook Time Cook Time: 25 minutes
  • Total Time Total Time: 35 minutes
  • Yield Yield: 24 1x
  • Category Category: Brownies
  • Method Method: Oven
  • Cuisine Cuisine: Dessert


These Chocolate and Peanut Butter Brownies are easy and delicious!



  • 1 box (18.5-ounce) Brownie Mix
  • 2 eggs
  • 1/3 cup vegetable oil
  • 3/4 cup coarsely chopped peanuts
  • 1 (14 oz) can sweetened condensed milk)
  • 1/2 cup peanut butter


  1. Preheat oven to 350°F. Line a 9×13 pan with foil and coat with nonstick spray. Set aside.
  2. In the bowl of your stand mixer fitted with the paddle attachment mix the brownie mix, oil and eggs on medium speed until smooth.
  3. Stir in the chopped peanuts.
  4. Divide batter in half and press half the batter into bottom of prepared pan (it will be a thin layer) and set the other half to the side.
  5. In a large bowl combine the peanut butter and sweetened condensed milk with whisk.
  6. Pour peanut butter mixture over the bottom layer of the brownie.
  7. Drop the remaining brownie mix on top of the peanut butter layer, pressing each spoonful lightly into peanut butter.
  8. Bake for 25 minutes until just set.
  9. Let cool completely before cutting into squares.


Store airtight at room temperature for up to 3 days

Nutrition Information:

1 brownie
14.2 g
111.8 mg
10.9 g
16.1 g
5.3 g
24.6 mg

Keywords: cookies and cups, brownies, brownies recipe, peanut butter, peanut butter brownies, buckeyes, buckeye brownies, buckeye balls

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Buckeye Brownies


Hi! I’m Shelly and I’m an addict. Of the buttercream sort. I started this site a few years ago as a way to justify my sugary, buttery obsession with desserts. It has worked out well for me so far, because as it turns out you guys all love sugary, buttery desserts too! It feels good to know you're not alone, doesn’t it?

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Jul 5, 2020 4:29 pm

If I want to use homemade brownie mix, do I also add eggs and oil, or is that added because the recipe calls for box mix? Thanks! Cant wait to try the recipe!

Mar 28, 2019 12:33 am

I made these today and they’re delicious. Easy to make and I got lots of compliments. Next time I’ll take a little bit more care to really make sure I reserve enough brownie batter after the first pour to cover the top and not stress if I can’t perfectly spread the base layer. I ran a little short for the final layer and too much of the peanut butter mixture showed through with a baked, crepey texture. Of course I was probably the only person who cared at all but you know how self-critical us bakers are. Still a hit… Read more »

Mar 25, 2019 5:43 am

I just loved it, I’m not only going to give it 5 stars. But, I’m going to share it with all my website’s followers on the social media. Thank you for giving me something useful to share it today!

Mar 24, 2019 1:33 pm

its looking tasty i wanna try this

Mar 23, 2019 10:07 am

These are great. I made them with your “my kids favorite brownies’ and they came out great. I love the peanutbutter caramel!

Jul 21, 2015 10:50 pm

I love your thinking and how you write. I so agree with the daylight savings time thing. Can’t wait to make the brownies! Thanks for the recipe!

Nov 3, 2014 4:55 pm

These were absolutely decadent. What a wonderful recipe. The first of many recipes I will be making from your excellent website. Thank you for sharing.

Feb 24, 2014 5:27 pm

Buckeye brownies are in the oven…haven’t even tasted them yet, but based on the little bit I have found on your blog I know they will be fantastic! I am a self-confessed sugar-aholic…ummm, sweetened condensed milk…love it! You and I could be long lost sisters! Keep writing!

Jul 3, 2013 5:40 pm

Awesome! I just made these using a muffin pan…. SOOOOO good! Thank you!

Mar 1, 2013 1:38 am

These are so easy and delicious! I didn’t have peanuts so I just swapped in chunky peanut butter and a few chopped peanut butter cups.

Jan 15, 2013 4:48 pm

I was a bit skeptical but now that I’ve done it, I totally get the ‘swim in it’ reference. I would make one change however…there aren’t nearly enough nuts in that recipe so I doubled them and sprinkled the top too. Heaven! Thanks for sharing.

Christina @ ovenadventures
Jul 12, 2012 2:27 am

I just discovered buckeyes like a year go. I can not believe they have hidden from me for so long. It was probably for the best though because I could live on them. These brownies are totally fab-u-lous

Jul 2, 2012 9:46 am

These are SO RICH they just about blow the top of your head off!! If you like that kind of thing – these are def for you. If not, steer clear 😉

Jun 11, 2012 8:39 pm

These are in the oven right now! Is the batter supposed to be very very thick? My brownie mix on its own called for more oil and some water, but I just followed your recipe. I assume the milk and peanut butter will add moisture. Either way, I am sure they will be amazing!

Jun 11, 2012 10:08 am

Made these for the weekend! They were awesome and gone in less than 24 hours. Everything that I’ve made from this site has been ah-ma-zing!

Shelly Hi! I’m Shelly and I’m an addict. Of the buttercream sort. I started this site a few years ago as a way to justify my sugary, buttery obsession with desserts. It has worked out well for me so far, because as it turns out you guys all love sugary, buttery desserts too! It feels good to know you're not alone, doesn’t it?

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