Instructions: Sift together in a bowl dry ingredients. Add 1/2 cup shortening, 2/3 cup milk, and 1 teaspoon vanilla extract. Beat 2 minutes. Add another 1/3 cup milk and 4 egg whites, unbeaten. Beat 2 more minutes. To 1/3 of the batter add 1 square unsweetened chocolate (1 ounce) melted, mixed with 1/4 teaspoon baking soda and 2 tablespoons warm water. Pour alternately in a greased 9" square pan. Bake at 350 for 35 to 45 minutes. Frost with chocolate frosting.

Chocolate frosting: Beat shortening and powdered sugar together. Add cocoa. Add milk by tablespoon till thick enough to spread. Add 1 teaspoon vanilla.

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