Rich Chocolate Cheesecake

1 Chocolate Wafer Crust

1 (12 oz) package semisweet chocolate chips
4 (8 oz) packages cream cheese, softened
2 cups sugar
4 eggs
1 T cocoa
2 tsp vanilla
1 (16 oz) carton commercial sour cream
Whipped cream

Press Chocolate Wafer Crust mixture on bottom and ½ inch up the sides of a 10-inch springform pan.  Pre-bake as crust recipe directs.

Melt chocolate chips in microwave or over double boiler.

Beat cream cheese at high speed of an electric mixer until light and fluffy; gradually add sugar, mixing well.  Add eggs, one at a time, beating well after each addition.  Stir in melted chocolate, cocoa, and vanilla; beat until blended.  Stir in sour cream, blending well.  Pour into prepared pan.  Bake at 300 for 1 hour and 40 minutes (center may be soft but will firm when chilled).  Let cool to room temperature on a wire rack; chill at least 8 hours.  Garnish each serving with whipped cream.  Yield: 10-12 servings.

Chocolate Wafer Crust

1 ¼ cups chocolate wafer crumbs
1/3 cup butter, melted

Combine crumbs and butter, mixing well. 

Bake at 350 for 6-8 minutes.