1 cup graham cracker crumbs
3 tablespoons sugar
3 tablespoons margarine, melted
3 pkgs. (8 oz. each) cream cheese, softened
3/4 cup sugar
1 teaspoon vanilla
3 large eggs
1 sq. (1 ounce) unsweetened chocolate, melted (see note)
Combine crumbs, sugar, and margarine; press onto bottom of 9-inch springform cake pan. Bake at 350ºF for 10 minutes.
Combine cream cheese, sugar and vanilla, beating at medium speed on electric mixer until well blended. Add eggs, one at a time, mixing well after each addition. Blend chocolate into 1 cup batter. Spoon plain and
chocolate batters alternately over crust; cutting through batters with knife several times for the marble effect. Bake at 450ºF for 10 minutes. Reduce oven temperature to 250ºF, continue baking 30 additional minutes. Loosen cake from rim of pan; cool before removing rim of pan. Chill.
Note: Try using semisweet chocolate.