Mom's Chocolate Cake | Food Stuff

Ingredients

• 1/2 cup baking cocoa
• 2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 2 cups packed brown sugar
• 6 tablespoons butter, softened
• 1/2 cup buttermilk
• 2 cups sifted cake flour
• 3-1/2 cups confectioners' sugar
• 2 eggs, separated
• 4 to 6 tablespoons milk
• Pinch salt
• 1/2 cup shortening
• 2 ounces unsweetened chocolate, broken into pieces
• 1-1/2 teaspoons vanilla extract
• 1/2 cup chopped walnuts
• 1/2 cup water