1 Family Size pkg. brownie mix, plus ingredients called for (for the 9"x13" pan)
1 (8 oz.) pkg. cream cheese, softened
3 Tbs. butter, softened
1 Tbs. cornstarch
1 (14 oz.) can sweetened condensed milk
2 tsp. vanilla
1 (16 oz.) can milk chocolate frosting
Preheat oven to 350 degrees.
Prepare brownie mix as directed on the package. Spread into a 9"x13" baking pan that has been sprayed with nonstick baking spray.
In a large mixing bow, beat the cream cheese, butter and cornstarch until its fluffy. Beat in the sweetened condensed milk. Beat in the egg and the vanilla until smooth. Pour the cheesecake mixture evenly over the brownie batter.
Bake for 45 minutes or until the top is just starting to brown. Remove from oven and allow to cool.
Spread with the frosting. Cut into bars and serve!