Double Chocolate Marshmallow Crispy Bars Ingredients 1/2 c. unsalted butter, at room temperature 3/4 c. sugar 2 large eggs 1 tsp. pure vanilla extract 3/4 c. all-purpose flour 2 T. cocoa 1/4 tsp. baking powder 1/4 tsp. kosher salt 2 c. mini marshmallows 1 c. semi-sweet chocolate chips 1 c. creamy peanut butter 1-1/2