Miracle Whip Chocolate Cake

2 cups all-purpose flour
1 cup granulated sugar
4 tablespoons cocoa
Dash of salt (optional)
1 1/2 teaspoons baking soda
1 cup Miracle Whip
1 cup cold water
1 teaspoon vanilla extract

Heat oven to 350 degrees F. Grease an 11 x 7-inch glass baking pan.

Sift together dry ingredients. Gradually add liquid ingredients, mixing well. Bake for about 20 to 25 minutes. Let cool completely before frosting.