These Reese’s Stuffed Brownies are an easy recipe for ultra-decadent brownies (made with brown butter) with a surprise inside. Go full size or go home! I’m not messing around. Originally posted January 19, 2015

Reese's Brownies

So today I was literally running around like a crazy person. Long to-do list, you ask? Errands to run? Um, no. More like the barefoot, dodging legos, literal kind of running. In my house.

I’ve been terrible lately about keeping any sort of exercise routine. There’s always some excuse right? No time, I already showered, I just ate 3 Banana Churros and now I’m too full. << Yeah, I know. Balance is not my forte, okay?

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Reeses brownies

But last week I decided I had had enough. No excuses, I just needed to move, and I knew that if I conceptualized that thought for too long my resolve would fizzle. I needed to surprise attack my own body.

So I started jogging from room to room. Why not, right? At least that’s what I thought for my first few laps. This isn’t so bad. Who needs a treadmill anyway? Waste of space, if you ask me. On a treadmill you don’t even get to hurdle tiny (but deadly) Elsa barbie shoes. (Clearing the halls for running would have qualified as a stalling tactic for I Can’t Commit Karen, hence the toy land mines.)

Pretty soon the kids were both sitting on the bean bag, doing nothing but watching me as I huffed and puffed by every 10 seconds. I thought they were about to bust out the popcorn.

Peanut Butter Stuffed Brownies

How to make Reese’s Brownies

Welcome to this chocolate-peanut-butter coma. You might want to start running around your house this very instant in preparation for this mad decadence. The concept is simple: take the richest, fudgiest, chocolate-iest brownie you could ever imagine, and shove a Reese’s Peanut Butter Cup inside. I don’t really feel like I need to go on, but let me just tell you the secret–it’s the brown butter. It doesn’t taste like brown butter, just gives it a really deep flavor.

Placing peanut butter cups for Reese's brownies
I ate one too many, okay?
Spreading batter over reese's cups

This is my go-to Brown Butter Brownies recipe that I make ALL the time…plus Reese’s. You can see above, you just insert the Reese’s Peanut Butter Cups and spread the batter until covering each cup.

Reese's Stuffed Brownies

If you’re not feeling the peanut butter, just mix in 1 cup of dark or semi-sweet chocolate.Any way you jazz up these brownies, you will get people hunting you down for this recipe. Also, if you are having a get-together I can’t think of a better way to top off party appetizers than these babies.

More Peanut Butter and Chocolate:

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Reese’s Stuffed Brown Butter Brownies

4.72 from 7 votes
Prep: 10 minutes
Cook: 25 minutes
Total: 35 minutes
Servings: 12 Servings
These Reese's Stuffed Brownies are an easy recipe for ultra-decadent brownies (made with brown butter) with a surprise inside. Go full size or go home! I'm not messing around. 


  • 1 & 1/4 cups salted butter
  • 2 & 1/2 cups granulated sugar
  • 1 cup unsweetened cocoa powder
  • 1/2 teaspoon salt
  • 1 tablespoon water
  • 2 teaspoons vanilla extract
  • 4 large eggs
  • 1 cup all-purpose flour
  • 12 large Reese's Peanut Butter Cups


  • Preheat oven to 350 degrees F.
  • Prepare a 9×13 baking dish by lining with parchment paper or foil and then spraying with non-stick cooking spray. Or just spray the pan.
  • Melt butter in a large saucepan over medium heat. Stir occasionally. The butter will foam up, then back down and start forming brown-colored milk solids or “bits”. When it is a nice light brown and it starts to smell like you could drink it straight, that’s when you know it’s done.
  • While your butter is browning, combine sugar, cocoa, and salt in a bowl or stand mixer.
  • Once the butter is nice and brown, immediately pour the butter into the bowl with the sugar and cocoa (so that it stops cooking. You don’t want it to burn). Beat the mixture until it is smooth, almost creamy.
  • Add the water and vanilla. Add the eggs, one at a time, mixing in between each addition.
  • Add the flour and mix until just incorporated. Batter will be about the consistency of cement. Have a taste. It’s awesome.
  • Use a sturdy rubber spatula to spread batter into the prepared pan.
  • Unwrap 12 (or 11…) large Reeses PB cups and press them into the brownie batter. Swirl the top with a spatula, so that the PB Cups are covered.
  • Bake at 350 for about 25-30 minutes, or until a toothpick comes out batter-free. The center of the pan should be mostly set.


Serving: 1brownie | Calories: 507kcal | Carbohydrates: 65g | Protein: 7g | Fat: 28g | Saturated Fat: 15g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 8g | Trans Fat: 1g | Cholesterol: 114mg | Sodium: 353mg | Potassium: 264mg | Fiber: 4g | Sugar: 50g | Vitamin A: 690IU | Vitamin C: 1mg | Calcium: 44mg | Iron: 2mg
Course: Dessert
Cuisine: American
Calories: 507
Keyword: Browned Butter, brownie, Reese’s
Did you make this? I’d love to see it!Mention @thefoodcharlatan or tag #thefoodcharlatan!

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  1. Karen, I adore you! You are funny, witty and share the greatest recipes of all time. However, did you say all Reese’s should be made with dark chocolate? Did you trip after stepping on a Lego and bang your head? Please Karen, nooooooo!

  2. 5 stars
    You might like this one just as well…spray Baker’s Secret to the bottom of 13×9 pan, in a mixing bowl, 1 cup sugar, 1 cup peanut butter (any style), 1 egg. Stir into a paste. Spread over bottom of pan evenly. Top with whatever brownie mix that you’ve made, box or, scratch. Bake 350 for 35-40 minutes. BING! Additional tasty items in the brownie mix work well with this. Enjoy!

  3. Hi! I want to make these for the Fourth but only have mini Reese’s in the pantry. Would that still work? 

    1. Hi Julia! I think it will taste great, yes! It won’t be quite the same but I don’t think you will hear any of your guests complaining :)

  4. This was such an awesome way to use up the rest of our Reese’s Halloween chocolates! This was my first time making browned butter and this recipe had the perfect detail to help with my nerves about it. My house smells delicious and I can’t wait to share these with hubby :)

    1. Hooray, browned butter success Bronwyn! I’m so glad you all enjoyed the brownies, there’s nothing better than a candy-stuffed-baked-good, right? :) Thanks so much for commenting!

  5. Thanks for sharing these with the world! I made them last weekend and gosh, they were amazing! They were such a big hit with my friends and I’m excited to try out the extras I froze for later. I didn’t even notice you used salted butter and used my standard unsalted, but it turned out totally fine.

    I loved them so much, I blogged about them today – you can see it here.

    1. Your blog looks great Felicia! Thanks for sharing. These are seriously some of the best brownies, right?? I love them. Thanks for your feedback! :)

  6. Hi! just made these beauties for Easter! I used organic sugar cane and whole wheat organic flour and freshly ground honey roasted peanut butter and they were AMAZING!! My kids wouldn’t stay away from the batter! I always worry that changing these ingredients will alter the taste too much, but I don’t think these could be any better! Thank you so much!

    1. Wow super fancy! I’m so glad your substitutions worked! It’s the best when the kids love it, right? :) Thanks for coming back to comment Rebecca!

  7. Made these with my husband, but he got the small reeses (smh), but they turned out delicious…preggers and craving sweets :-)

    1. If you add enough of the small ones, it’s the same as eating the big ones right Brandi?? :) I totally get the pregnant cravings! Sometimes you gotta just give in. Thanks for coming back to comment!

  8. These have got to be the best brownies I’ve ever seen! PS: Running around the house seems like a perfectly acceptable form of exercise to me ;)

  9. ALL my favorites in one bar! I love that you used the big ones- go big or go home ;)

  10. Omg for real??? These are just too incredible for words. Reese’s stuffed brownies are one thing but you used the big ones??? And brown butter? I can die now. Also thanks for eliminating any possible excuses I may have had keeping me from exercise. :P

  11. I love that you ate one too many of the peanut butter cups! Hahaha! These look like some serious brownies, you don’t mess around!!

    1. I KNOW! I was super embarrassed when I realized I had eaten too many and everyone would see that I’m a glutton even while preparing over the top candy stuffed brownies. Haha! Thanks Julia!!

  12. We had a treadmill at my parents house when we grew up. And I think I ran on it…4 times? Who wants to jog in place while staring at a wall? Boring! I like your idea of just jogging thru the house. But I’m sure I would trip on a dog in less than a minute, ha! These brownies are too good! Peanut butter and chocolate all the way!

    1. My mother in law has a mini tv mounted directly in front of her treadmill, which I think is genius. If I had that then I probably wouldn’t be hurdling dollhouses, haha!

  13. Does running to the kitchen count? Because I’m about to in preparation for these brownies–never mind I still have some brownies on the counter from a previous batch. These look like chocolate death–in the best way possible. I’m in love.

  14. I’m beyond obsessed! These pictures are stunning… my stomach is totally growling, yum! :) Pinning!

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