Easy Brownies

1 (20-ounce) package brownie mix
1 cup sour cream
1 cup milk chocolate chips
1 cup chopped pecans
1 (12-ounce) can chocolate icing
½ cup sugar
Preheat oven to 325 degrees. Prepare brownies according to package directions. Add sour cream, chocolate chips, and pecans. Spread into a 12x16x1-inch jellyroll pan lined with nonstick foil. Bake for 15 to 18 minutes. Remove and ice. Cut into squares, and dip bottoms into sugar. Yield: 4 dozen brownies