Chocolate Marble Cheesecake
["Graham Crust (recipe follows)", "3 pkg. (8 oz. each) cream cheese, softened", "2 c. dairy sour cream", "1 c. sugar", "2 tsp. vanilla", "3 Tbsp. unsifted all-purpose flour", "4 eggs", "1/4 c. Hershey's cocoa", "1/4 c. sugar", "1 tsp. vanilla"]
["Prepare Graham Crust; cool.", "Combine cream cheese, sour cream, 1 cup sugar and 2 teaspoons vanilla in a large mixer bowl.", "Beat on medium speed until smooth.", "Add flour, a tablespoon at a time, blending well.", "Add eggs, one at a time, beating well after each addition.", "Reserve 2 cups of batter; pour remaining batter into crust."]
["Crust", "cream cheese", "sour cream", "sugar", "vanilla", "flour", "eggs", "cocoa", "sugar", "vanilla"]