Chocolate Cake with vegetables

1 1/2 cups sugar 2 1/2 cups cake flour 2 teaspoons baking powder 1 cup cocoa 3/4 cup rum 1/2 cup plain yogurt 3/4 cup vegetable oil 3 eggs 1 1/2 cups raisins[...]

2 2/3 cups cake flour 1 1/2 teaspoons baking soda 1/2 teaspoon salt 2/3 cup unsweetened cocoa powder 1 teaspoon instant espresso powder 2/3 cup boiling water[...]

1 1/2 cups unbleached white flour 1/3 cup cocoa powder 1/2 teaspoon baking soda 1/2 teaspoon salt 1 cup sugar 1/4 cup vegetable oil 1/4 cup unsweetened[...]

1/2 cup margarine , stick-type 1 1/2 cups sugar 2 egg whites 1 whole egg 1 cup buttermilk , nonfat 1/2 cup water 2 cups flour , all-purpose 1 teaspoon baking[...]