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Loaded Peanut Butter Cookie Cake Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.5 from 10 reviews
  • Author: Amanda
  • 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 treat packed with creamy peanut butter, sprinkles, Reese’s Pieces, and miniature peanut butter cups. Baked in a single pie plate, it delivers a chewy, flavorful dessert perfect for sharing.


Ingredients

Scale

Cookie Batter

  • 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
  • 1 cup all-purpose flour
  • ½ teaspoon salt, or to taste

Add-ins & Toppings

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


Instructions

  1. Preheat Oven: Preheat your oven to 350 degrees Fahrenheit and spray a 9-inch glass pie plate with cooking spray. Set aside.
  2. Melt Butter: Place the butter in a large microwave-safe bowl and heat on high for about 1 minute until melted.
  3. Mix Wet Ingredients: Wait a moment to cool the butter slightly, then add the egg, brown sugar, and vanilla extract. Whisk together until smooth.
  4. Add Peanut Butter: Stir in the creamy peanut butter until fully incorporated.
  5. Incorporate Dry Ingredients: Add the flour and salt, stirring just until combined. Avoid overmixing to keep the cookie tender.
  6. Add Sprinkles and Reese’s Pieces: Fold in the sprinkles and ½ cup Reese’s Pieces until evenly distributed.
  7. Prepare Batter in Pan: Pour the batter into the prepared pie plate and smooth the top lightly with a spatula.
  8. Add Peanut Butter Cups: Evenly space the miniature peanut butter cups over the surface, pressing them down so they sit flush with the dough.
  9. Top With Extra Reese’s Pieces: Sprinkle 1 to 2 tablespoons of extra Reese’s Pieces evenly over the top and gently tap them down for visual appeal.
  10. Bake: Bake in the preheated oven for 29 minutes or until the center is set and a toothpick inserted comes out clean or with moist crumbs but no batter.
  11. Cool: Remove the cookie cake from the oven and let it 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.
  • You can substitute the fall-themed sprinkles with chocolate jimmies for a different flavor profile.
  • Press the peanut butter cups down gently so they bake flush with the cookie surface, preventing them from burning or sticking out.
  • Do not overmix the flour to keep the cake tender and chewy.

Nutrition

  • Serving Size: 1 slice
  • Calories: 320 kcal
  • Sugar: 25 g
  • Sodium: 180 mg
  • Fat: 18 g
  • Saturated Fat: 6 g
  • Unsaturated Fat: 11 g
  • Trans Fat: 0 g
  • Carbohydrates: 35 g
  • Fiber: 2 g
  • Protein: 6 g
  • Cholesterol: 40 mg