Melt chocolate in double boiler over hot( not simmering) water. Add butter to chocolate and melt together. Heat eggs over simmering water. Remove eggs, and beat for 10 minutes(thick)Add eggs to melted chocolate and fold in until even. Put in 20 cm springflorm pan with waxed paper on bottom slightly greased. Smooth. Preheat oven to 220ºC .Put cake in for 5 minutes,put alumium foil over pan, bake 10 minutes more. Remove and cool for 45 minutes, 3 hours in the refrigerator. Garnish with whipped cream and raspberry sauce