Ingredients
1 package dark chocolate cake mix (regular size)1 package (3.9 ounces) instant chocolate pudding mix1/2 cup 2% milk1/2 cup canola oil1/3 cup butter, melted2 large eggs, divided use6 Butterfinger candy bars (1.9 ounces each), divided 1-1/2 cups chunky peanut butter1 teaspoon vanilla extract1-1/2 cups semisweet chocolate chips, divided
Preparation
Preheat oven to 350°. In a large bowl, combine cake mix and pudding mix. In another bowl, whisk milk, oil, butter and 1 egg until blended. Add to dry ingredients; stir just until moistened. Press half of the mixture into a greased 15x10x1-in. baking pan. Bake until top appears dry, 6-8 minutes.
Meanwhile, chop 2 candy bars. Stir peanut butter, vanilla and remaining egg into remaining cake mix mixture. Fold in chopped bars and 1 cup chocolate chips.
Chop 3 additional candy bars; sprinkle over warm crust and press down gently. Cover with cake mix mixture; press down firmly with a metal spatula. Crush remaining candy bar; sprinkle crushed bar and remaining 1/2 cup chocolate chips over top.
Bake until a toothpick inserted in center comes out clean, 20-25 minutes. Cool completely on a wire rack. Cut into bars. Store in an airtight container.
