Brownie Bottom Cheesecake Bars

1 pkg brownie mix (9x13 pan size)
4 pkg (8oz each) cream cheese, softened
1 C sugar
1 t vanilla
1/2 C sour cream
3 eggs
2 squares semi-sweet baking choc. melted, cool slightly

Preheat oven to 350. Line 13x9 baking pan w/ tinfoil. Grease. Prepare brownies as on pkg, pour batter into pan. Bake 15 min or until top of brownie is shiny and centre is almost set.

Beat cream cheese, sugar and vanilla w/ electric mixer on medium until well blended. Add sour cream, mix well. Add eggs one at a time mixing on low after each, until just blended. Pour over partially baked brownie batter in pan. Filling will come almost to top of pan.

Bake 40 minor until centre is almost set. Run knife around rim of pan to loosen cake. Cool. Refrig 4 hrs or overnight. Let stand 30 min at room temp before serving. Drizzle with chocolate, lift out of pan. Makes 16 bars