Mystery Fudge Cake - cooking recipe

Ingredients

1/4 c. butter
2 eggs, separated
2 c. sugar
1 1/2 c. sweet milk
2 c. flour (Swans Down preferred)
2 tsp. baking powder
2 tsp. vanilla
4 sq. bitter chocolate

Preparation

Blend butter and egg yolks together well.
Gradually add sugar, creaming well.
Sift baking powder and flour together.
Add flour and milk alternately.
Add melted chocolate and vanilla. Last fold in beaten egg whites.
Bake 30 minutes in 375\u00b0 oven.