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Gluten-free Buckeye Brownies

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A chewy, fudgy gluten-free brownie gets topped by a creamy peanut butter layer, then glazed with a smooth layer of dark chocolate for an amazing dessert. Gluten-free buckeye brownies taste like a brownie and a Reese’s peanut butter cup together! If you love those little treats called Buckeyes that so many people make at Christmas, you are going to love these brownies!

Stack of 3 Gluten-free Buckeye Brownies

When I saw these buckeye brownies over at the blog Brown Eyed Baker, I knew I had to make this Buckeye Brownie recipe gluten-free. I noticed right away that she uses an adapted version of the yummy America’s Test Kitchen brownies, just like I do for my gluten-free Chewy Brownies. That made this super easy as I could just use my gluten-free brownie recipe as the base, since I’ve already perfected it.

I’ve made these multiple times now and believe these are the best Buckeye Brownies! Sometimes I use gfJules flour blend, sometimes with Gluten Free Mama’s All-purpose Almond Blend Flour and sometimes with King Arthur Measure for Measure blend and they always turn out perfect!

I followed Brown Eyed Baker’s recipe for the filling, except that I opted for half & half to bump up the richness. For the chocolate-peanut butter glaze, I choose to go with a darker chocolate by using semi-sweet chocolate chips.

Ingredients for gluten-free buckeye brownies

I originally shared this recipe in May 2013. Now I’ve updated with step by step photos and a video. Watch how to make these Buckeye Brownies here:


How to make gluten-free Buckeye Brownies:

There are three layers to these Buckeye brownies.

First you’ll make and bake the gluten-free brownie layer:

Making gluten-free brownies

Then you’ll make the peanut butter layer and spread on top of the baked brownies:

Making peanut butter layer for gluten-free buckeye brownies

Finally, you’ll make the peanut butter and chocolate glaze:

Making chocolate topping layer of gluten-free buckeye browniesI recommend placing the pan of finished gluten-free buckeye brownies in a refrigerator so they can set up before cutting. 

These are great at room temperature but are even more fudgy when chilled.  They cut very nicely too once they’re chilled.

Gluten-free Buckeye Brownies Pan

I’m starting to think I might just need to add a whole page category on here just for all of my recipes that use chocolate and peanut butter. I just can’t get enough of that combo. I hope you all like that flavor combo as much as me! If you do, be sure to check out my gluten-free peanut butter pie recipe too! And these gluten-free peanut butter butterscotch cookies are so good if you love peanut butter, butterscotch and chocolate.

And now for the recipe!

Gluten-free Buckeye Brownie Recipe:

Yield: 24 brownies

Gluten-free Buckeye Brownies

Stack of 3 Gluten-free Buckeye Brownies

A chewy, fudgy gluten-free brownie gets topped by a creamy peanut butter layer, then glazed with a smooth layer of dark chocolate to make these gluten-free buckeye brownies.



  • ⅓ cup Dutch-processed cocoa (I use Saco dutch/natural blend
  • ½ cup plus 2 tablespoons boiling water
  • 2 oz. unsweetened chocolate, finely chopped (I use Baker’s squares)
  • 4 tablespoons (1/2 stick) unsalted butter, melted
  • ½ cup plus 2 tablespoons oil (I usually use corn or canola)
  • 2 large eggs
  • 2 large egg yolks
  • 2 teaspoons pure vanilla extract
  • 2½ cups (17½ ounces) sugar
  • 1¾ cups good quality all-purpose gluten-free flour blend*
  • 1/2 tsp.xanthan gum
  • ¾ teaspoon table salt

Peanut Butter Layer:

  • 3/4 cup creamy peanut butter (I used Jif Natural)
  • 1/2 cup unsalted butter
  • 1/8 tsp. salt
  • 2 1/4 cup powdered sugar
  • 2 Tbsp. half & half or whole milk
  • 1 tsp. vanilla extract

Chocolate Peanut Butter Glaze:

  • 1 1/2 cups semi-sweet chocolate chips
  • 1/3 cup creamy peanut butter (I used Jif Natural)


  1. Preheat oven to 350°. Make a foil sling for your pan: Cut 18″ length foil and fold lengthwise to 8″ width. Fit foil into length of 13×9″ baking pan (I recommend using a metal one), pushing into corners and up the sides of pan; allow excess to overhang pan edges. Cut 14″ length foil and fit into width of pan in the same manner, perpendicular to the first sheet. Spray foil with nonstick cooking spray.
  2. Make the Brownies: In a large, microwave-safe bowl, whisk cocoa and boiling water together until smooth. Add unsweetened chocolate and whisk until the chocolate is melted. If you need to, place the bowl in the microwave in 30 second increments to help melt the chocolate. Whisk in the melted butter and oil. Mixture may look curdled at this point and that’s okay! Add eggs, yolks and vanilla extract, and continue to whisk until smooth and homogenous. Whisk in sugar until fully incorporated.
  3. In a small bowl, whisk together the gluten-free flour blend, xanthan gum, and salt. Stir the flour mixture into wet ingredients and mix with a rubber spatula until combined.
  4. Scrape batter into prepared pan and bake at 350° until toothpick inserted halfway between edge and center comes out with just a few moist crumbs attached, 30 to 35 minutes. Transfer pan to a wire rack and cool 1 hour.
  5. Make the Peanut Butter Layer: With your electric mixer, beat together the peanut butter, butter and salt on medium speed until smooth and creamy, about 2 minutes. Reduce the speed to low and alternate adding the powdered sugar and the half & half (or milk), mixing to combine after each addition. Add the vanilla extract, beat to combine, then increase the speed to medium-high and beat until completely smooth and creamy. Add extra half and half as needed to get it to a spreadable consistency. Using a spatula, spread the peanut butter mixture in an even layer over the top of the brownies. For this step, I spread it a bit, but then had better success using a sprayed piece of saran wrap or a sprayed food safe glove, and patting the mixture to cover the brownies completely.
  6. Make the Chocolate Peanut Butter Glaze: Melt together the chocolate chips and peanut butter in the microwave on 50% power, stirring every 30 seconds, until completely smooth and melted. Pour the mixture over the peanut butter layer and spread into an even layer with a spatula. Refrigerate for at least 30 minutes, or until set.
  7. When set, cut and serve! The foil sling makes it easy to pull them out and place on cutting board for easy cutting. These cut very nicely with a plastic bladed cutter. You can serve at room temperature or keep chilled.


As always, be sure to double-check your ingredients for gluten.
*Feel free to try this with your preferred gluten-free flour blend, but I only guarantee a delicious, non-gritty result if you use one of the flours I recommend.

If the gluten-free flour blend you use already has xanthan gum or guar gum in it, then omit the xanthan gum called for in this recipe.

Pin this to your gluten-free desserts board on Pinterest:

Gluten-free Buckeye Brownies Recipe

Old photo from May 2013 when I first posted this recipe:

Gluten-free Buckeye Brownies recipe

I hope you and your family enjoy these gluten-free brownies with peanut butter and chocolate as much as my family does!

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Estelle George

Sunday 19th of December 2021

Can you recommend a gluten free cooking spray to spray on the foil? Some of the sprays have wheat in them. Thank you.

Old Fashioned Christmas Bark

Saturday 7th of March 2020

[…] Buckeye brownies […]


Wednesday 29th of January 2020

I have come across several variety of brownies and have tried quite a number of them. I haven't seen a recipe that has peanut butter in it. This must taste amazing.

This is really a beauty. What other variety of brownies do you have up your sleeve?


Saturday 4th of January 2020

Just made these for my son-in-law for his birthday and he said they were even better than his Aunt's peanut butter balls which apparently taste just like Reeses peanut butter cups. He just loved them. I did use a gluten free brownie mix (as one reviewer suggested) but followed your recipe other than that. These are dense and rich. This will be his birthday treat from now on. Thanks so much for the recipe :) These were a hit with everyone!


Saturday 30th of November 2019

I absolutely LOVE your recipes!! However, I was wondering if you ever have substituted the whole milk for those of us that can't have dairy in addition to no gluten. Can't wait to try this...

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