Marble Brownies - cooking recipe

Ingredients

1 (21 1/2 oz.) brownie mix
1 (8 oz.) pkg. Philadelphia brand cream cheese, softened
1/3 c. sugar
1/2 tsp. vanilla
1 egg
1 c. Baker's semi-sweet real chocolate chips

Preparation

Prepare brownie mix as directed on package. Spread batter in greased 13 x 9-inch baking pan.