Chocolate crumb crust
1/4 c  Melted butter
1/4 c  Cocoa
4    (8 oz) packs softened cream
Cheese
1 cn Sweetened condensed milk
4    Eggs
1 tb Vanilla
1/3 c  Unsifted flour

Preheat oven to 300. Prepare crust. Stir together butter & cocoa until
smooth. In large mixer bowl, beat cheese until fluffy. Gradually
beat in condensed milk until smooth. Beat in eggs & vanilla then
flour. Measure 1 1/2 cups batter into medium bowl. Beat in cocoa
mixture. Spoon half the vanilla batter into prepared shell then half
the chocolate batter. Repeat, ending with chocolate batter. With
metal spatula, cut through batters to marble. Bake 50-60 minutes or
until center is set. Cool. Refrigerate leftovers. Chocolate crumb
crust: Combine 1 1/2 cups vanilla wafers (about 45 wafers), 1/2 cup
confectioners sugar, 1/3 cup cocoa & 1/3 cup melted butter. Press
firmly on bottom of 9″ springform pan.