Instructions

• Preheat oven to 350°F (175°C). Grease a 9×13‑inch baking pan and set aside.
• In a large bowl, cream together the softened butter and brown sugar until smooth.
• Add the creamy peanut butter and stir until combined.
• Add the eggs one at a time, then stir in the vanilla extract until the mixture is uniform.
• In a separate bowl, whisk together the all‑purpose flour, baking powder, and salt.
• Gradually add the dry ingredients to the wet ingredients, stirring until just combined.
• Fold in the Reese’s Pieces and chocolate chips until evenly distributed.
• Evenly spread the batter into the prepared 9×13 pan.
• Bake at 350°F for about 30 minutes, or until a toothpick inserted into the center comes out clean.
• Remove from the oven and allow the bars to cool in the pan before cutting.