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Chocolate Chip Cookie Bars with Chocolate Buttercream

Prep Time3 hours
Cook Time30 minutes
Total Time3 hours 30 minutes
Servings: 20
Author: Molly

Ingredients

  • For the Cookie Bars:
  • 1 cup unsalted butter
  • ¾ cup granulated sugar
  • 1 cup brown sugar
  • 2 eggs
  • 1 tbsp vanilla
  • 1 tsp baking soda
  • cup flour
  • ½ tsp salt
  • mini choc chips
  • For the Frosting:
  • 1 cup 2 sticks unsalted butter, softened
  • 3 cups sifted powdered sugar
  • cup cocoa powder
  • ½ teaspoon salt
  • 6 tablespoons heavy cream divided
  • 1 teaspoon vanilla extract
  • 1 batch chocolate buttercream frosting

Instructions

  • Line a 9x13 pan with foil and spray with cooking spray and set aside.
  • For the cookies, melt butter over medium heat, cook, stirring often, about 6 minutes until it turns brown. Once it starts turning brown keep stirring so it doesn’t burn. Remove from the heat and let it rest for about 5 minutes.
  • Pour butter, still warm, in and electric mixer with a paddle attachment. Add sugars and mix on low until combined. Let sit and cool for a few minutes before adding eggs to avoid them cooking.
  • While cooling, combine flour, baking soda and salt in a medium bowl. Set aside.
  • Turn mixer on low again and add eggs, one at a time, mixing completely. Mix in vanilla. Add flour mixture to wet ingredients and mix until combined, about 1 minute. Stir in chocolate chips with a rubber spatula.
  • Press cookie dough evenly into pan, covering the entire surface. Refrigerate for 30 minutes.
  • Preheat oven to 350 degrees and bake for 30-35 mins.
  • Remove from oven and allow to cool completely.
  • While cooling, make the frosting.
  • Frost cooled cookie dough bars with and cut into squares.