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Peanut Butter Oreo Bars Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.4 from 13 reviews
  • Author: Lucy
  • Prep Time: 20 minutes
  • Cook Time: 1 hour
  • Total Time: 1 hour 20 minutes
  • Yield: 16 squares
  • Category: Dessert
  • Method: No-Cook
  • Cuisine: American

Description

Peanut Butter Oreo Bars combine a crunchy Oreo cookie base with a creamy peanut butter layer and a rich chocolate topping. These no-bake bars are perfect for a sweet treat or dessert with a delightful balance of flavors and textures.


Ingredients

Scale

Oreo Base

  • 15 Oreo cookies, not double stuffed
  • 3 tablespoons unsalted butter, melted

Peanut Butter Layer

  • 1/4 cup unsalted butter, softened
  • 3 tablespoons brown sugar, light or dark
  • 1/4 teaspoon salt (omit if using salted butter)
  • 1 cup smooth peanut butter
  • 1 2/3 cup powdered sugar, sifted

Chocolate Topping

  • 6 ounces semi-sweet chocolate
  • 2 teaspoons shortening or 1/2 teaspoon vegetable oil


Instructions

  1. Prepare Pan: Line an 8×8 inch (20×20 cm) pan with parchment paper or aluminum foil, leaving an overhang on the sides for easy removal.
  2. Make Oreo Crust: Crush Oreo cookies into fine crumbs using a food processor or by placing them in a freezer bag and crushing with a rolling pin. Mix the crushed Oreos with melted butter and press the mixture firmly into the bottom of the prepared pan.
  3. Prepare Peanut Butter Layer: Beat softened butter and brown sugar together until smooth. Add peanut butter and salt, continuing to beat until no butter lumps remain. Gradually mix in powdered sugar about half a cup at a time until well combined and the mixture does not stick to fingers.
  4. Assemble Peanut Butter Layer: Spoon the peanut butter mixture evenly over the Oreo crust and press or spread it into an even layer, using wax paper if desired to smooth the surface.
  5. Make Chocolate Topping: Chop chocolate finely and place in a heat-proof bowl. Melt the chocolate by microwaving on medium power for 45 seconds at a time, stirring between intervals until fully melted, or melt using a double boiler over low heat. Stir in shortening or vegetable oil until smooth.
  6. Pour Chocolate Over Peanut Butter Layer: Pour the melted chocolate evenly over the peanut butter layer and smooth the top with a spatula.
  7. Set Bars: Let the chocolate harden at room temperature or place in the fridge. Note that refrigerating may cause slight discoloration of the chocolate.
  8. Slice Bars: When the chocolate is about 90% hardened, score the top lightly with a sharp knife where you plan to cut. Once fully hardened, lift the bars using the parchment paper overhang and slice into 16 squares with a sharp, thin knife.

Notes

  • Use smooth, commercially prepared peanut butter that is well mixed to avoid oil separation.
  • Nutrition information is approximate, based on slicing the pan into 16 squares.
  • Store bars in an airtight container at room temperature or in the refrigerator for longer freshness.
  • Press the Oreo crust firmly to ensure the base holds together well.
  • Use wax paper to smooth the peanut butter layer to achieve a neat, even finish.

Nutrition

  • Serving Size: 1 bar
  • Calories: 280 kcal
  • Sugar: 22 g
  • Sodium: 120 mg
  • Fat: 18 g
  • Saturated Fat: 6 g
  • Unsaturated Fat: 10 g
  • Trans Fat: 0 g
  • Carbohydrates: 25 g
  • Fiber: 1 g
  • Protein: 5 g
  • Cholesterol: 15 mg