Preparation Steps

• Preheat the oven to 350°F (175°C) and grease a 9x13 inch baking pan.
• In a large bowl, mix melted butter, granulated sugar, and brown sugar until well combined.
• Add eggs one at a time, mixing well after each addition.
• In another bowl, whisk together flour, cocoa powder, salt, and baking powder.
• Gradually add the dry ingredients to the wet ingredients and stir until just combined.
• Fold in the chopped cookies and cream bar.
• Pour the batter into the prepared baking pan and smooth the top.
• Bake in the preheated oven for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
• Let cool in the pan before cutting into squares and serving.