Texas Sheet Cake - cooking recipe

Ingredients

2 c. sugar
2 c. flour
1/2 tsp. salt
2 sticks margarine
1 c. water
1/4 c. cocoa
2 beaten eggs
1/2 c. buttermilk *
1 tsp. soda
1 tsp. vanilla
1 Tbsp. vinegar

Preparation

*Hint:
For buttermilk, substitute 1/2 cup milk plus 1 teaspoon vinegar.