School Chocolate Cake

2 cups flour
2 cups sugar
2 teaspoons baking soda
1 teaspoon salt
6 tablespoons cocoa
2 cups water
2 teaspoons vanilla extract
2 tablespoons vinegar
10 tablespoons oil

Mix dry ingredients together in large bowl, then make a well in center. Add liquids. Mix well. Bake in 9 x 13-inch pan at 350 degrees F for 35 to 40 minutes. Use your favorite icing.