Cooking : Best Chocolate Cake

Ingredients
1/2 cup butter
1/2 cup shortening
1 cup water
1/4 cup unsweetened cocoa powder
2 cups all-purpose flour
2 cups white sugar
1/2 cup milk
1 tablespoon distilled white vinegar
1 teaspoon baking soda
1 teaspoon vanilla extract
6 tablespoons butter
4 tablespoons milk
3 tablespoons unsweetened cocoa powder
3 cups sifted confectioners' sugar
1 teaspoon vanilla extract

Directions
Bring to a boil the 1/2 cup butter or margarine, 1/2 cup shortening, water and 1/4 cup cocoa. Remove from heat and add flour, sugar, 1/2 cup milk and vinegar. Mix well. Then add: eggs, baking soda and 1 teaspoon vanilla.
Mix well until lumps are gone. Pour into greased 9 x 13 inch pan. Bake at 400 degrees F (205 degrees C) for 20 minutes or until toothpick comes out clean.
To Make Fudge Frosting: Combine in saucepan , 6 tablespoon butter or oleo, 4 tablespoons milk and cocoa. Bring to rolling boil. Remove from heat and add 3 cups confectioners' sugar and 1 teaspoon vanilla. Beat until smooth. Spread on cooled cake.