1 (20 to 23 oz.) pkg. brownie mix
1 (8 oz.) pkg. Philadelphia brand cream cheese, softened
1/3 c. sugar
1 egg
1/2 tsp. vanilla

Prepare brownie mix as directed on package. Combine cream cheese and sugar, mixing until well blended. Blend in egg and vanilla. Reserve 1/2 cup batter, spread remaining batter onto bottom of greased 9x13 inch baking pan. Cover with cream cheese mixture; spoon on reserved batter. Cut through batter with knife several times for marble effect. Bake at 350 degrees for 30 to 35 minutes. Cool, cut into squares.