Chocolate Truffle Cake - cooking recipe

Ingredients

16 oz. semi-sweet chocolate pieces
1 stick unsalted butter
1 1/2 tsp. flour
1 1/2 tsp. sugar
1 tsp. hot water
4 eggs, separated
1 c. heavy cream

Preparation

Preheat oven to 425\u00b0.
Grease bottom of spring-form pan.
Melt chocolate and butter in top of double boiler.
Add flour, sugar and water; blend well.
Beat egg whites until stiff, not dry, and set aside.