Whipped-Chocolate Frosting

• 2 squares unsweetened chocolate
• 1/2 cup light cream
• 1 teaspoon vanilla
• 2 egg whites, beaten stiff
• 1 1/2 to 2 cups confectioners sugar

Cook chocolate and cream over boiling water until smooth; cool, add vanilla. Beat whites, add sugar and continue beating until stiff enough to cut. Combine the two mixtures, beat well.