1 c. graham cracker crumbs
3 tbsp. sugar
3 tbsp. butter, melted
3 (8 oz.) pkgs. cream cheese
3/4 c. sugar
3 tbsp. flour
1 tsp. vanilla
3 eggs
1 (1 oz.) square unsweetened chocolate, melted

Combine crumbs, sugar and butter. Press onto bottom of 9" pan. Bake at 350 degrees for 10 minutes.

Combine softened cream cheese, sugar, flour and vanilla mixing at medium speed until well blended. Blend in eggs. Blend chocolate into 1 cup batter. Spoon plain and chocolate batters alternately over crust, cut through batter with knife several times. Bake at 450 degrees for 10 minutes. Reduce oven temperature to 250 degrees. Bake 30 minutes. Garnish with whipped cream.