Here you go,hope this is what you wanted.........
CHOCOLATE YEAST CAKE

1/2 pkg. yeast
3 Tbsp. lukewarm water
1 1/3 c. plus 1/2 tsp. sugar
1/2 c. butter
1/2 tsp. salt
2 eggs, well beaten
2 Tbsp. warm water
2/3 c. sweet milk
1 tsp. vanilla extract
2 c. flour
3/4 tsp. baking soda
1/2 c. cocoa

Stir yeast in 3 tablespoons lukewarm water. Add 1/2
teaspoon sugar. Let stand for 5 minutes. Cream butter, 1 cup
sugar and salt. Add eggs and then cocoa mixed with 1/3 cup
sugar. Stir in milk, vanilla and flour alternately. Add
softened yeast; mix well. Cover batter; let stand in a cool
place overnight. Dissolve soda in 2 tablespoons warm water;
stir into batter. Pour in two greased layer cake pans. Bake
at once in 350 degrees oven about 25 minutes or until done. Frost
cake with your favorite white frosting.