Mix cream cheese with 1/3 cup sugar and one egg until light and fluffy. Set aside. Cream margarine with remaining sugar; then beat in two eggs, one at a time, until light and fluffy; then add cocoa. Stir in a mixture of flour, baking powder and salt until blended. Add vanilla. Spoon half chocolate mixture into greased 8" or 9" square baking pan. Spoon cheese mixture over chocolate layer. Add remaining chocolate by teaspoonfuls to cover cream cheese, spreading carefully. Bake at 350 F. for about 30 to 40 minutes depending on size of pan. Do not overbake. Cool and cut into squares.

Recipe from Chiffon Margarine company, as published in Consumer Guides "More Favorite Brand Name Recipes Cookbook" 1984. per Donna Ransdell, Fidonet Intercook echo