Old Fashion Devil's Food Cake

• 2 squares of unsweetened chocolate
• 3 tablespoons water
• 1 1/4 cup sugar
• 1/2 cup butter
• 1 cup buttermilk
• 1 teaspoon baking soda
• 1 egg yolk
• 2 scant cups flour

Preheat oven to 350°F., a moderate oven. Melt the chocolate, water and sugar in double boiler; when dissolved add the butter. Stir well. Set aside to cool . Mix buttermilk, baking soda and beaten yolk, add the melted chocolate mixture and then the flour. Bake in 2 well greased and floured 9" layer pans for25 minutes. Frost as desired.