Fudge without syrup flour

18 1/3 ounces Betty Crocker fudge brownie mix 2 tablespoons water , as called for on brownie mix box 1/4 cup vegetable oil, as called for on brownie mix box 1[...]

5 1/2 cups sifted flour 1 cup baking cocoa 2 teaspoons baking powder 1 teaspoon baking soda 1 teaspoon salt 1 1/2 cups shortening 3 1/3 cups sugar 4 eggs 2[...]