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Brownie Bottom Reese’s Peanut Butter No-Bake Bars Short Description Brownie Bottom Reese’s Peanut Butter No-Bake Bars combine the rich, fudgy texture of a brownie base with a creamy peanut butter layer, all topped with a smooth chocolate glaze. Packed with Reese’s Pieces or chopped Reese’s cups, these indulgent bars are perfect for peanut butter and chocolate lovers alike. With minimal effort, this dessert is sure to impress at any gathering. Why You’ll Love This Recipe Decadent layers – A fudgy brownie base, a smooth peanut butter filling, and a rich chocolate topping create a perfect balance of textures. Easy to make – Simple ingredients and straightforward steps make this a beginner-friendly dessert. Great for peanut butter lovers – Packed with Reese’s Pieces or chopped Reese’s cups for extra peanut butter flavor. Perfect for any occasion – Ideal for parties, bake sales, or a sweet treat at home. Make-ahead friendly – These bars can be made in advance and stored for later. Ingredients (Tip: You can find the complete list of ingredients and their measurements in the recipe card below.) For the Brownie Base: 1 box brownie mix (plus ingredients listed on the box: eggs, oil, water) For the Peanut Butter Layer: 1 cup creamy peanut butter ½ cup unsalted butter, melted 1 ½ cups powdered sugar 1 teaspoon vanilla extract 1 cup crushed Reese’s Pieces or chopped Reese’s cups For the Chocolate Topping: 1 ½ cups semisweet chocolate chips 2 tablespoons peanut butter Directions Bake the Brownie Base: Prepare the brownie mix according to the package instructions. Bake in a greased 9×13-inch pan. Once done, let the brownies cool completely before adding the peanut butter layer. Make the Peanut Butter Layer: In a bowl, mix peanut butter, melted butter, powdered sugar, and vanilla until smooth. Stir in the crushed Reese’s Pieces or chopped Reese’s cups. Spread evenly over the cooled brownie base. Prepare the Chocolate Topping: In a microwave-safe bowl, melt the chocolate chips and peanut butter together in 20-second intervals, stirring until smooth. Pour over the peanut butter layer and spread evenly. Chill & Set: Refrigerate for at least 1 hour, or until firm. Slice & Serve: Once set, cut into bars and enjoy! Servings and Timing Prep Time: 15 minutes Baking Time: 25 minutes Chilling Time: 1 hour Total Time: 1 hour 40 minutes Servings: 12-16 bars Calories per serving: ~450 Variations Gluten-Free Option: Use a gluten-free brownie mix for a gluten-free version. Crunchy Peanut Butter: Substitute creamy peanut butter with crunchy for added texture. Extra Chocolate Flavor: Add a drizzle of melted white chocolate over the top for a decorative touch. Nut-Free Alternative: Use sunflower seed butter and nut-free chocolate candies instead of Reese’s products. Salted Caramel Addition: Drizzle caramel sauce over the chocolate layer before chilling. Storage/Reheating Refrigeration: Store in an airtight container in the fridge for up to 5 days. Freezing: Freeze in a sealed container for up to 3 months. Thaw in the refrigerator before serving. Room Temperature: These bars can be kept at room temperature for up to 2 days, but they stay firmer when chilled. FAQs Can I use homemade brownies instead of a mix? Yes! A homemade brownie recipe will work just as well as a boxed mix. How do I make clean cuts when slicing? Use a sharp knife dipped in hot water, wiping between each cut for neat slices. Can I use white chocolate instead of semisweet? Yes, white chocolate will create a sweeter, creamier topping. What if I don’t have Reese’s Pieces? You can use chopped peanut butter cups, M&M’s, or chocolate chips instead. Can I make these bars ahead of time? Yes, they are perfect for making a day in advance and storing in the fridge. Can I skip the chilling step? No, chilling is necessary for the layers to set properly. How do I keep the chocolate layer from cracking? Let the bars sit at room temperature for a few minutes before slicing. Can I use almond or cashew butter instead? Yes, but the flavor will change slightly. Can I make these bars dairy-free? Use dairy-free butter, dairy-free chocolate, and a plant-based brownie mix. Are these bars overly sweet? They are rich and sweet, but the peanut butter balances the flavors well. Conclusion Brownie Bottom Reese’s Peanut Butter No-Bake Bars are the ultimate treat for chocolate and peanut butter lovers. With a fudgy brownie base, a creamy peanut butter layer, and a smooth chocolate topping, these bars offer a perfect combination of textures and flavors. Whether for a party, a family gathering, or just a sweet craving, this recipe is sure to be a hit!

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  • Author: Grace
  • Prep Time: 15 minutes
  • Cook Time: 25 minutes
  • Total Time: 40 minutes
  • Yield: 12-16 bars 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

These Brownie Bottom Reese’s Peanut Butter No-Bake Bars combine the best of both worlds—a rich, fudgy brownie base topped with a creamy peanut butter layer loaded with Reese’s goodness, all finished with a smooth chocolate topping. A decadent, chocolate-peanut butter lover’s dream! These Brownie Bottom Reese’s Peanut Butter No-Bake Bars combine the best of both worlds—a rich, fudgy brownie base topped with a creamy peanut butter layer loaded with Reese’s goodness, all finished with a smooth chocolate topping. A decadent, chocolate-peanut butter lover’s dream!


Ingredients

Units Scale

For the Brownie Base:

  • 1 box brownie mix (plus required ingredients: eggs, oil, water)

For the Peanut Butter Layer:

  • 1 cup creamy peanut butter
  • 1/2 cup unsalted butter, melted
  • 1 1/2 cups powdered sugar
  • 1 teaspoon vanilla extract
  • 1 cup crushed Reese’s Pieces or chopped Reese’s cups

For the Chocolate Topping:

  • 1 1/2 cups semisweet chocolate chips
  • 2 tablespoons peanut butter

    For the Brownie Base:

    • 1 box brownie mix (plus required ingredients: eggs, oil, water)

    For the Peanut Butter Layer:

    • 1 cup creamy peanut butter
    • 1/2 cup unsalted butter, melted
    • 1 1/2 cups powdered sugar
    • 1 teaspoon vanilla extract
    • 1 cup crushed Reese’s Pieces or chopped Reese’s cups

    For the Chocolate Topping:

    • 1 1/2 cups semisweet chocolate chips
    • 2 tablespoons peanut butter

Instructions

1️⃣ Bake the Brownie Base – Prepare the brownie mix according to package instructions and bake in a greased 9×13-inch pan. Once done, let the brownies cool completely before adding the peanut butter layer.

2️⃣ Make the Peanut Butter Layer – In a bowl, mix peanut butter, melted butter, powdered sugar, and vanilla extract until smooth. Stir in the crushed Reese’s Pieces or chopped Reese’s cups. Spread evenly over the cooled brownie base.

3️⃣ Prepare the Chocolate Topping – In a microwave-safe bowl, melt chocolate chips and peanut butter together in 20-second intervals, stirring until smooth. Pour over the peanut butter layer and spread evenly.

4️⃣ Chill & Set – Refrigerate for at least 1 hour, or until firm.

5️⃣ Slice & Serve – Once set, cut into bars and enjoy this rich, chocolatey, peanut buttery treat

1️⃣ Bake the Brownie Base – Prepare the brownie mix according to package instructions and bake in a greased 9×13-inch pan. Once done, let the brownies cool completely before adding the peanut butter layer.

2️⃣ Make the Peanut Butter Layer – In a bowl, mix peanut butter, melted butter, powdered sugar, and vanilla extract until smooth. Stir in the crushed Reese’s Pieces or chopped Reese’s cups. Spread evenly over the cooled brownie base.

3️⃣ Prepare the Chocolate Topping – In a microwave-safe bowl, melt chocolate chips and peanut butter together in 20-second intervals, stirring until smooth. Pour over the peanut butter layer and spread evenly.

4️⃣ Chill & Set – Refrigerate for at least 1 hour, or until firm.

5️⃣ Slice & Serve – Once set, cut into bars and enjoy this rich, chocolatey, peanut buttery treat


Notes

  • For extra crunch, sprinkle crushed peanuts or mini Reese’s on top before chilling.
  • Want a shortcut? Use store-bought brownies instead of baking from a mix.
  • Store leftovers in an airtight container in the fridge for up to 5 days.
  • Let bars sit at room temperature for 5-10 minutes before slicing for cleaner cuts.
  • For extra crunch, sprinkle crushed peanuts or mini Reese’s on top before chilling.
  • Want a shortcut? Use store-bought brownies instead of baking from a mix.
  • Store leftovers in an airtight container in the fridge for up to 5 days.
  • Let bars sit at room temperature for 5-10 minutes before slicing for cleaner cuts.