Whipped cream (optional) Contributed to the echo by: Fred Towner Originally from: Calgary Sun Monday, June 18, 1990 John Nunziata's Chocolate Cheese Cake Combine first four ingredients and press into the bottom of a 20 cm springform pan. Beat eggs and sugar with electric beater until a pale mixture. Mix well. Melt chocolate in double boiler. Stir in sour cream, butter and vanilla. Add to cheese mixture and stir. Pour batter into pan. Bake at 160ºC for 2 hours or until centre is firm. Cool on wire rack. Remove from pan. Chill and serve with whipped cream. Serves 10.