MOCHA CAKE

12 oz. pkg. chocolate chips
2 tbsp. instant coffee (powdered)
2 tbsp. water
2 tbsp. sugar
7 eggs, separated
1 tsp. vanilla
Pinch of salt
8 1/2 oz. pkg. Nabisco chocolate
wafers
Combine chips, coffee, sugar, water, and salt in top of double boiler on very low heat (careful not to scorch), until melted. Stir and cool. Add egg yolks and vanilla; mix well. Beat egg whites until stiff. Fold chocolate mixture into whites. Roll wafers with a rolling pin until fine or put in blender; then sift wafers. Arrange 1/3 wafer crumbs in 8 x 8 inch square pan; cover with 1/2 of chocolate mixture. Add another 1/3 of crumbs, then chill 1 hour in freezer. Add other 1/2 of chocolate mixture, then rest of crumbs. Chill in freezer 2 hours, then move to refrigerator for several hours or overnight. Serve with dollop of whipped cream on top.