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Loaded Peanut Butter Cookie Cake Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.6 from 17 reviews
  • Author: Lucy
  • Prep Time: 5 minutes
  • Cook Time: 29 minutes
  • Total Time: 1 hour
  • Yield: 8 servings
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Description

This Loaded Peanut Butter Cookie Cake is a rich, indulgent dessert loaded with creamy peanut butter, colorful sprinkles, Reese’s Pieces, and miniature peanut butter cups, baked to a perfect gooey and chewy texture in a 9-inch pie plate.


Ingredients

Scale

Wet Ingredients

  • ½ cup unsalted butter, 1 stick, melted
  • 1 large egg
  • 1 cup light brown sugar, packed
  • 1 tablespoon vanilla extract
  • Heaping 1/3 cup creamy peanut butter

Dry Ingredients

  • 1 cup all-purpose flour
  • ½ teaspoon salt

Add-ins and Toppings

  • ½ cup brown and orange fall-themed sprinkles (or substitute with chocolate jimmies)
  • ½ cup Reese’s Pieces, plus 1 to 2 tablespoons more for sprinkling
  • 10 to 12 miniature peanut butter cups, unwrapped


Instructions

  1. Preheat and prepare pan: Preheat the oven to 350°F and spray a 9-inch glass pie plate with cooking spray; set aside.
  2. Melt the butter: In a large microwave-safe bowl, heat the unsalted butter on high power for about 1 minute until melted.
  3. Combine wet ingredients: Let the melted butter cool slightly, then add the egg, brown sugar, and vanilla extract. Whisk until the mixture is smooth and uniform.
  4. Add peanut butter: Stir in the creamy peanut butter until fully incorporated.
  5. Add dry ingredients: Add the all-purpose flour and salt. Stir gently until just combined, taking care not to overmix the batter.
  6. Mix in sprinkles and Reese’s Pieces: Fold in the fall-themed sprinkles and ½ cup Reese’s Pieces evenly into the dough.
  7. Transfer batter to pan: Spread the batter evenly into the prepared pie plate and smooth the surface lightly with a spatula.
  8. Top with peanut butter cups: Arrange the miniature peanut butter cups evenly over the surface, pushing them lightly into the batter so they are flush.
  9. Decorate topping: Sprinkle 1 to 2 tablespoons of extra Reese’s Pieces on top for added color and lightly tap them down to adhere.
  10. Bake: Bake the cookie cake in the preheated oven for 29 minutes, or until the center is set and a toothpick inserted comes out clean or with a few moist crumbs but no raw batter.
  11. Cool and serve: Remove from the oven and allow the pie to cool on a wire rack for at least 30 minutes before slicing and serving.

Notes

  • Store the cookie cake airtight at room temperature for up to 1 week to maintain freshness.
  • If you can’t find fall-themed sprinkles, substitute with chocolate jimmies or rainbow sprinkles.
  • Be careful not to overbake; the center should still be slightly moist for the perfect chewy texture.
  • For a nuttier flavor, use crunchy peanut butter instead of creamy.
  • Use a glass pie plate as it helps bake the cookie evenly and allows you to monitor browning.

Nutrition

  • Serving Size: 1 slice
  • Calories: 350 kcal
  • Sugar: 25 g
  • Sodium: 210 mg
  • Fat: 18 g
  • Saturated Fat: 7 g
  • Unsaturated Fat: 9 g
  • Trans Fat: 0 g
  • Carbohydrates: 40 g
  • Fiber: 2 g
  • Protein: 6 g
  • Cholesterol: 55 mg