In a small mixing bowl, beat the cream cheese, sugar, egg and vanilla until smooth; set aside.
For brownie layer combine butter, sugars, and cocoa in a large bowl, blend well. Add eggs on at a time, beating well after each one.
Combine flour and baking powder, stir into the cocoa mixture. Stir in vanilla and cookie crumbs.
Pour into a greased 11x7x2 inch baking pan. Spoon cream cheese mixture over batter, cut through batter with a knife to swirl.
Bake a 350 degrees for 255 to 30 minutes or until toothpick comes out with moist crumbs. Cool completely.
Recipe submitted by d234 on 5/5/00