Chocolate Mousse(Serves 6)  
["4 egg whites", "1 c. fine (bar) sugar", "8 oz. bittersweet chocolate (not chocolate chips)", "1 pt. heavy cream", "3 Tbsp. coffee flavored liqueur", "drop of lemon juice or very small pinch of cream of tartar"]
["Over double boiler, mix egg whites and sugar and dissolve sugar (whites should be warm, not hot).", "Add a drop of lemon juice and whip whites to stiff peaks.", "Chop chocolate and melt over double boiler; cool slightly.", "Fold chocolate into egg whites.", "Whip heavy cream stiff.", "Fold in liqueur.", "Fold whipped cream into chocolate mix.", "Divide into 6 glasses.", "Top with whipped cream."]
["egg whites", "sugar", "bittersweet chocolate", "heavy cream", "coffee", "lemon juice"]