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Mouthwatering Butterfinger Cookie Bars Recipe

4.6 from 60 reviews

These Mouthwatering Butterfinger Cookie Bars combine the rich flavors of buttery cookie base with crunchy chopped Butterfinger bits, topped with a creamy peanut butter frosting and more Butterfinger pieces for a decadent treat perfect for any occasion.

Ingredients

Scale

Cookie Base

  • 2 sticks unsalted butter (1 cup), room temperature
  • 1/2 cup sugar
  • 1 cup brown sugar
  • 2 eggs
  • 1 tsp vanilla extract
  • 2 1/2 cups flour
  • 1 tsp salt
  • 1 tsp baking soda
  • 1/2 cup Butterfinger bars, chopped (3 big sized bars)

Peanut Butter Frosting

  • 3/4 cup peanut butter
  • 1 stick unsalted butter, room temperature
  • 1 tsp vanilla extract
  • 1 1/2 cups powdered sugar
  • 3 tbsp milk

Topping

  • 1 1/2 cups Butterfinger bars, chopped (5 big sized bars)

Instructions

  1. Preheat Oven: Preheat your oven to 350°F (175°C) to prepare for baking the cookie base.
  2. Prepare Baking Dish: Line a 9×13-inch baking dish with parchment paper and lightly spray with cooking spray; set aside.
  3. Make Cookie Dough: In a large bowl, beat together 1 cup butter, sugar, and brown sugar using a hand mixer until the mixture is light and creamy.
  4. Add Eggs and Vanilla: Mix in the eggs and vanilla extract, beating until fully incorporated.
  5. Mix Dry Ingredients: Add flour, salt, and baking soda to the wet mixture and beat until combined.
  6. Add Butterfinger Pieces: Stir in 1/2 cup chopped Butterfinger bars, mixing just to combine.
  7. Bake Cookie Base: Spread the dough evenly in the prepared baking dish and bake for 25 minutes or until the edges are golden brown.
  8. Cool Cookie Base: Remove from oven and allow to cool completely in the pan.
  9. Make Peanut Butter Frosting: In a clean large bowl, beat peanut butter and 1 stick butter with a hand mixer until smooth and creamy with no chunks.
  10. Add Vanilla: Mix in 1 tsp vanilla extract until combined.
  11. Incorporate Powdered Sugar and Milk: Gradually add powdered sugar and milk, beating until the frosting is smooth and creamy.
  12. Frost Cookie Bars: Evenly spread the peanut butter frosting over the cooled cookie base.
  13. Add Topping: Sprinkle the remaining 1 1/2 cups of chopped Butterfinger bars evenly over the frosting.
  14. Serve: Slice into bars, serve, and enjoy these indulgent Butterfinger cookie bars!

Notes

  • Ensure the cookie base is completely cooled before spreading the frosting to prevent it from melting.
  • For easier cutting, refrigerate the bars after frosting for about 30 minutes.
  • You can substitute crunchy peanut butter for a bit more texture in the frosting if desired.
  • Store bars in an airtight container at room temperature for up to 3 days or refrigerate for up to a week.

Keywords: Butterfinger cookie bars, peanut butter frosting, easy dessert bars, chocolate candy bars dessert, bake and frost bars