Coffee Sponge Cake - cooking recipe

Ingredients

1/4 c. boiling water
1 Tbsp. coffee
2 c. sifted cake flour
3 tsp. baking powder
1/2 tsp. salt
6 eggs
1/2 tsp. cream of tartar
1/2 c. sugar
1 1/2 c. sugar
1 tsp. vanilla

Preparation

Combine boiling water and coffee.
Add cold water to make 1 cup.
Sift cake flour, baking powder and salt; set aside. Separate eggs.
Place whites in a deep bowl and add cream of tartar.
Beat until stiff, but not dry.
Gradually add 1/2 cup sugar in beaten egg whites.
Continue to beat until whites stand in peaks.
Place yolks in large bowl and beat gradually.
Add 1 1/2 cups sugar and vanilla.
Beat until very thick.
Alternately with cooled coffee liquid, fold egg yolks and flour mixture, 1/4 at a time, into beaten whites.
Put in a 10-inch tube pan and bake at 350\u00b0 for 1 hour.