Old Fashioned Chocolate Cake
["1 1/2 c. flour", "1 c. sugar", "1/2 tsp. salt", "3 Tbsp. cocoa", "1 tsp. vanilla", "1 Tbsp. vinegar", "1/2 c. (1/4 lb.) melted butter or oleo", "1 c. warm water"]
["Sift first 5 ingredients and pour into 8 x 8-inch pan.", "Add next 3 ingredients.", "Pour warm water over all and mix.", "Bake 30 minutes at 350\u00b0 in ungreased pan."]
["flour", "sugar", "salt", "cocoa", "vanilla", "vinegar", "butter", "water"]