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Sandwiching a Reese’s peanut butter cup between a fudgy, chewy brownie may be one of the world’s most decadent desserts ever created to elevate a boxed brownie mix. Reese’s cup brownies are the perfect excuse to buy Reese’s peanut butter cups or to use up leftover Halloween candy.

Reese’s Brownies: Peanut Butter and Chocolate Heaven
Can you name a better combo than peanut butter and chocolate? The fact that these peanut butter brownies exist prove that this duo is simply delicious and perfect. This will satisfy all your peanut butter and chocolate cravings and not to mention, help you out a bit when you’re sifting through all that Halloween candy and wondering what else you can do with all those Reese’s peanut butter cups! I mean, it’s a ‘let me help you’ situation here. It’s also a great surprise to those expecting a regular ole brownie and get a sweet surprise!
These totally irresistible Reese’s brownies only take one bowl, your favorite brownie mix, and Reese’s peanut butter cups! Now, go find yourself some Reese’s peanut butter cups and get baking! Serve these with an iced shaken espresso as an afternoon pick-me-up.

Peanut Butter Brownie Variations
- You can choose to make the brownie batter from scratch, but honestly, brownie mixes these days are so good that you wouldn’t miss out by grabbing a box. Plus, there are boxed brownie hacks that allow you to doctor up the brownies and make them even more decadent and rich.
- Add even more peanut butter flavor in every bite by sprinkling peanut butter chips into the batter before baking!
- There are so many varieties of Reese’s brownies now. I particularly love the dark chocolate peanut butter ones. Also, around different holidays, they have different shaped ones. For example, around Halloween they have the pumpkin-shaped Reese’s peanut butter cups. You can use whichever in this Reese’s brownie recipe!
Storage Instructions
These peanut butter brownies will last up to 4 days at room temperature if covered and wrapped tightly!
Pro tip: zap them in the microwave for 10-15 seconds to have a warm, gooey, center.

Reese’s Cup Brownies
Equipment
Ingredients
- 18 ounce (510 g) box of your favorite brownie mix
- 16 Reese's peanut butter cups
Instructions
- Preheat oven to 350 °F (177 °C) and grease a 9×9 baking pan with cooking spray and line with parchment paper. Set aside.
- Mix together brownie mix with ingredients according to the box to form the brownie batter.18 ounce (510 g) box of your favorite brownie mix

- Pour half the batter into the prepared baking pan and spread into an even layer with a spatula.

- Place Reese's cups on top of the brownie batter. There should be 4 in each row.16 Reese's peanut butter cups

- Pour the rest of the brownie batter on top of the Reese's cups, covering them. Spread the batter gently with a spatula to make sure everything is covered.

- Bake for 35-40 minutes then remove from oven and let brownies cool in pan until room temperature.
- Using a paring knife, run it around the edge of the pan to loosen the brownies. Slice into squares, you should get 16 so each brownie square has a Reese's peanut butter cup in the center.
- Store in airtight container for up to 4 days at room temperature.
Nutrition
Photographs by Meg McKeehan Photography











I’d say it’s less about being scared and more about being in a place away from the weather. I know a lot of people love mall trick or treating and we’ve thought about it but never made it there. I’m honestly fearful at how mobbed that might be! Oh and seriously jealous of your Reese’s leftovers. The kids didn’t even bring a single one home from their brief outing.
I love love reeses…my problem would be saving them to actually cook with them. LOL and brownies are my fav so this desert sounds oh so good!
Fabulous idea for using leftover candy. These look perfect!!
Amazing! This is the best use for Halloween candy!
These look amazing! I want! And yeah, I had to sit on my front porch so people would stop for candy. I miss the old days. haha
Best use of Halloween candy ever. I’m coming to your house! :)
What did you JUST DO? Seriously, now this is all I can think about. You jerk ;)
We didn’t have any Trick or Treaters… but then again we live out in the middle of no where so I didn’t even buy any candy. But after seeing these I’m kinda sad that I don’t have any left over candy that I need to use up. Lucky for me, all the Halloween candy is on sale now haha, so I can just go get some for cheap.
Holy cow, Julie! I want to come over and help you eat these!!!!
what a great idea to use up the leftovers. and peanutbutter and chocolate is match made in heaven, and combined into brownie is the best that could happen.