These Reese's Pieces Brownies start with a box mix and are stuffed with a hidden layer of Golden Oreos with Reese's Pieces on top. Just three main ingredients and so much fun in every single bite!
The post for Oreo Reese's Brownies was first published in August 2011. The photos were updated, and it was republished in May 2019.
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Okay, I have to give my oldest son credit for this recipe! In high school, he made these Oreo brownies with Golden Oreos and Reese's Pieces for a soccer party. This fun dessert was a hit with the whole team!
We've been making these ever since, and they're always one of the first desserts to disappear at a party. I mean, who doesn't love biting into a brownie and finding a whole layer of cookies hiding in the middle?! It gets everyone's attention, and then they usually go back for another piece.
And the best part? You only need a few simple ingredients to make a seriously fun dessert. I'd say my son was onto something with this one! Sometimes the easiest recipes really are the best ones.
Why You'll Love These Stuffed Golden Oreo Brownies
- Only 3 ingredients and so easy. This is one of those recipes you can make in minutes!
- That surprise Oreo layer. There's something so fun about biting into fudgy brownies and finding a whole cookie hiding in the middle.
- The crunch on top. The candies add a fun pop of color and just the right amount of peanut butter crunch.
- A fun dessert without the fuss. They look extra special when you cut into them, but they are so easy to make.
Ingredients Needed
You only need three basic ingredients for these fun, delicious brownies. Scroll down to the recipe card for the exact amounts.
- Boxed Brownie Mix: Use your favorite store-bought brand or homemade brownies. Baking times vary by brand, so keep an eye on them as they bake. I love using an Aldi brownie mix for these.
- Golden Oreos: These add a sweet vanilla layer in the center of the dessert. You'll need enough to cover the bottom of a 9x13 pan in a single layer, which is about 24 cookies.
- Reese's Pieces: These add a little peanut butter flavor, some crunch, and a fun pop of color. You could also use peanut butter chips.
Brownie Variations
- Use different Oreo cookies. Use regular Oreos for more chocolate flavor, or try peanut butter Oreos for more peanut butter goodness.
- Add Reese's peanut butter cups. Chop up the candies, then stir them into the brownie batter before baking.
- Make a smaller batch. Use an 8x8 pan for thicker, fudgier brownies. Keep an eye on them, as the baking time will be longer.
How To Make Reese's Pieces Brownies
These brownies are so easy to put together. Layer the batter, cookies, and candies, then let the oven do the rest.
- Make the brownie mix. Mix the batter in a large bowl following the package directions. Spread half the batter into a prepared pan.
- Add the Oreos. Arrange the cookies in a single layer over the batter, pressing them down slightly. Keep them close together so you get a cookie in every bite.
- Cover with the remaining batter. Gently spread the rest of the mixture over the cookies, making sure they are completely covered.
- Add the Reese's Pieces. Sprinkle the candies generously over the top and gently press them down into the thick batter so they stay put as the brownies bake.
- Bake. Place the pan in the oven and bake until a toothpick inserted in the center comes out with a few moist crumbs. Timing will vary by brand.
BruCrew Tips
- Line the pan with parchment paper. This makes it much easier to remove the brownies. Just lift the whole thing out, then cut into squares.
- Be gentle with the top layer. Take your time and work gently when spreading the brownie mix over the Oreos so the cookies stay put.
- Keep an eye on the baking time. Brownie mixes can bake a little differently from brand to brand, so start checking a few minutes early with a toothpick.
- Let them cool completely. I know it's hard to wait, but cutting into warm brownies will leave you with a mess instead of nice, clean squares.
Storing and Freezing
Keep the cooled brownies in a tightly covered container on the counter for 2-3 days or in the fridge for up to 5 days.
They also freeze really well for a few months. Wrap individual brownies in plastic wrap, then place them in an airtight container or freezer-safe bag. Just thaw to room temperature when the cravings hit!
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Recipe
Oreo Stuffed Reese's Pieces Brownies
These Reese's Pieces Brownies start with a box mix and are stuffed with a hidden layer of Golden Oreos with Reese's Pieces on top. Just three main ingredients and so much fun in every single bite!
Ingredients
- 1 - 9x13 box brownie mix
- 24 Golden Oreos
- 1 cup Reese's Pieces
Instructions
- Preheat oven to 350°F. Spray a 9x13 pan with baking spray and set aside.
- Mix up the brownie batter according to the package directions for fudgy brownies. Spread half the batter in the bottom of the prepared pan.
- Place the Oreo cookies on top of the batter and press in slightly. Cover with the remaining batter. Sprinkle the top with the Reese's Pieces.
- Place the pan in the oven and bake for 28 minutes. (see note below) Remove and place on a wire rack.
- Let the brownies cool completely before cutting into squares.
Notes
- Line the pan with parchment paper. This makes getting the brownies out so much easier. Just lift the whole thing out, then cut into squares.
- Be gentle with the top layer. Take your time and work gently when spreading the brownie mix over the Oreos so the cookies stay put.
- Keep an eye on the baking time. Brownie mixes can bake a little differently from brand to brand, so start checking a few minutes early with a toothpick.
- Let them cool completely. I know it's hard to wait, but cutting into warm brownies will leave you with a mess instead of nice, clean squares.
Nutrition Information:
Yield: 24 Serving Size: 1Amount Per Serving: Calories: 199Total Fat: 8gSaturated Fat: 2gUnsaturated Fat: 6gSodium: 146mgCarbohydrates: 30gFiber: 0gSugar: 14gProtein: 1g
Nutrition facts are an estimate and are not guaranteed to be accurate. If you need special diet advice, please see a registered dietician.
Shannon Komar says
Made these the other day and they were delicious! Think I'll use a smaller pan next time as although the Brownie mix said it did 13 x 9 pans, it didn't fully cover the cookies. Also used peanut butter M&Ms (no reeses pieces at the store). Good substitute since you still got the peanut butter flavour and addition of crunchy texture. Going to make another batch and share with work friends next week!
Jocelyn says
I'm so glad you enjoyed the brownies. Just be careful putting brownie batter in a smaller pan...you don't want it to overflow. Trust me...it's a mess. Maybe just put a little less brownie batter on the bottom, so you have extra to cover the cookies!
Mindy says
must try.. reeses calls my name!
Michael Ann says
Goodness, I am TRYING to visit other blogs this morning but I am stuck here! Those Reeses Oreo Brownies caught my attention so had to print that up too! Your son did good!
http://thebiggreenbowl.blogspot.com
Carrie says
My daughter and I made these and we thought they were OK but We both expected more…so slightly disappointed. I think our expectations were super high and they sounded amazing. But again, they were OK, I don’t think we would make them again though :/