Supreme Chocolate Cake - cooking recipe

Ingredients

2 (1 oz.) sq. unsweetened chocolate
1/4 c. hot water
3 beaten egg yolks
1 c. sour cream
1 1/2 c. sugar
1 tsp. vanilla
1 3/4 c. flour
1 tsp. soda
1/2 tsp. salt
3 beaten egg whites

Preparation

Melt chocolate in water over low heat.
Cool.
Beat egg yolks with cream.
Gradually add sugar and beat vigorously until thick. Add chocolate mixture and vanilla, mixing well.