8 oz. semi-sweet chocolate
4 oz. unsweetened chocolate
3/4 c. unsalted butter
5 eggs, separated
2 tsp. vanilla
2 tbsp. very strong coffee
Pinch of cream of tartar
1/4 c. sugar
1 c. heavy cream, whipped

Melt chocolate and butter in microwave until smooth. Beat egg yolks in large bowl and add chocolate. Beat egg whites with cream of tartar to a soft peak. Gradually add sugar. Continue to beat until stiff. Whisk 1/3 of the whites into chocolate mixture, "fold" the rest in. Fold the whipped cream into mixture. Refrigerate. Serve with more whipped cream.