Peanut Butter Cup Brownies Recipe

Preheat oven to 350 degrees F. Line a 9 x 13-inch baking pan with nonstick foil.

Stir together brownie mix, oil, eggs, and sour cream with a large dinner fork just until combined. (Some small lumps will remain). Fold in peanut butter cup baking chips. Pour into prepared pan.

Bake about 30 minutes, until a toothpick inserted in the center comes out with fudgy crumbs. Sprinkle hot brownies with the chocolate chips and let sit until chips are soft. Spread melted chips into a frosting evenly over brownies.

Cool completely to room temperature. Cut brownies into bars and serve.

Yield: 24 to 36 servings, depending on cut size Peanut Butter Cup Brownies Recipe Photo © 2007 Peggy Trowbridge Filippone, licensed to About.com, Inc.