Slutty Brownies

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Slutty Brownies are a super layered dessert bars made with peanut butter cookie dough, Reese’s cups, and fudge brownie mix. While I personally am not fond of the name – these easy brownie recipe has everything you could want in one dessert.

Slutty Brownies with Reese's

Peanut Butter Cup Brownies

These brownies are loaded with all the best kinds of ingredients. You basically get three desserts in one! You get the delicious taste of chocolate, peanut butter, and fudge in these brownies. I love making these for parties because they are always a hit!

In my recipe, everything’s boxed to make this a super easy recipe. However, you can always make any of these layered using homemade recipes from our site that I’ll link below. Your typical slutty brownie recipe will have Oreos instead of Reese’s peanut butter cups (which is perfectly fine to use if you prefer), but we think the addition of Reese’s is what takes this recipe to the next level of amazing.

Watch The Recipe Video!

Key Ingredients You’ll Need

  • Peanut Butter Cookie Dough: You can buy pre-packaged cookie dough or make your own homemade dough.
  • Reese’s Peanut Butter Cup: You will need regular-sized cups for this recipe. You can use mini cups too, they will work just as well.
  • Fudge Brownie Mix: You can buy a box of mixes or make your own brownie mix at home.

How To Make Slutty Brownies

  • Step 1. Set the oven to 350 degrees and use parchment paper to line a baking dish. Use non-stick cooking spray to lightly grease the pan. Push the cookie dough into the base of the pan evenly. Arrange the peanut butter cups in flat even rows on top of the dough.
  • Step 2. In a bowl, combine the brown mix, eggs, oil, and water and combine before pouring on top of Reese’s cups. Place in the oven for 45 minutes or longer to bake. Take the pan out of the oven and transfer it to a wire rack to cool thoroughly before slicing.

How To Store Slutty Brownies?

Place the leftovers in an airtight container for the best storage method. You can keep these brownies at room temperature for up to a week or store them in the freezer for up to 3 months.

Tips & Tricks

  • Depending on the brand of brownie mix you get, the eggs, oil, and water amounts may vary.
  • If you use a different sized pan, it will drastically change the baking time.
  • 8×8-inch pan = 1 hour
  • 9×9-inch pan = about 45 minutes
  • 9×13-inch pan = about 35 minutes
  • I like to leave my brownies at room temperature overnight before slicing because they have the best ooey gooey texture.
Slutty Brownies with Reese's

More Brownie Recipes:

Slutty Brownies on a wire rack
Slutty Brownies with a packaged reese's cup next to it.
5 from 2 votes

Slutty Brownies

Slutty Brownies are a super easy dessert made with peanut butter cookie dough, Reese's cups, and fudge brownie mix. This combo is perfection and always such a huge hit with everyone!
Servings: 16 squares
Prep: 10 minutes
Cook: 45 minutes
Total: 55 minutes


  • 1 16 oz. package peanut butter cookie dough
  • 25 Reese’s Peanut Butter Cups regular size, unwrapped
  • 1 18.3 oz. package fudge brownie mix
  • 2 eggs
  • cup vegetable oil canola oil
  • 3 Tbsp water


  • Preheat the oven to 350°. Prepare a baking dish with parchment paper. (See notes for baking dish sizes.) Spritz the parchment paper with nonstick cooking spray.
  • Press the cookie dough into the bottom of the baking dish.
  • Over the cookie dough, place the Reese’s Peanut Butter Cup candies in flat even rows.
  • Mix the remaining ingredients together – the brownie mix, egg, oil, and water. Spread the mixture over the top of the candies.
  • Place in the oven and bake for 45 minutes or longer, depending on the size of the baking pan. Depending on the style of brownie mix used, the center might be soft.
  • Remove the baking dish from the oven, place on a wire rack, and allow to cool completely prior to slicing.

Last Step:

Please leave a rating and comment letting us know how you liked this recipe! This helps our business to thrive and continue providing free, high-quality recipes for you.


  • If you use a different sized pan, it will drastically change the baking time.
  • 8×8-inch pan = 1 hour
  • 9×9-inch pan = about 45 minutes
  • 9×13-inch pan = about 35 minutes


Serving: 16g | Calories: 225kcal | Carbohydrates: 15g | Protein: 3g | Fat: 15g | Saturated Fat: 3g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 4g | Trans Fat: 0.1g | Cholesterol: 22mg | Sodium: 103mg | Potassium: 99mg | Fiber: 1g | Sugar: 13g | Vitamin A: 45IU | Vitamin C: 0.1mg | Calcium: 24mg | Iron: 0.4mg


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7 comments on “Slutty Brownies”

  1. Jennifer Roberts

    I am wondering if I could add nutter butters to the center as well? Give a lil something extra?

  2. I put Ruffles potato chips in mine. Makes a world of yummy better! I serve these warm. They never last more than an hour. ( 2nd shift at hospital) To die for!!

    1. Jennifer Roberts

      that sounds awesome! add a salty layer. I was thinking of maybe adding nutter butters to the center but not sure how that would work

  3. 5 stars
    I did a 9×13 and it has been in there for 55min and still isn’t done but it smells amazing. Not sure if I did something wrong or not.

  4. Where are the ‘notes’ so I know what size of pan to use ! either I’m blind looking too many times for it or it is hidden??

    1. The “notes” were in the tips and tricks section but I just added them the recipe card.