1/2 c. butter
2 sq. chocolate and 5 tsp. boiling water
4 eggs, separated
2 level tsp. baking powder
1/2 c. sweet milk or 1/2 tsp. baking soda to 1 c. buttermilk
1 1/2 c. sugar
1 3/4 c. flour
1 tsp. vanilla

Bake in moderate oven until well done, 30-35 minutes.