Ho Ho Cake
["1 1/2 c. flour", "1 c. sugar", "1/3 c. cocoa", "1 tsp. vanilla", "1 c. water", "1 tsp. salt", "1 tsp. soda", "1 tsp. vinegar", "1/3 c. oil"]
["Pour in a 9 x 13-inch pan.", "Bake at 350\u00b0 or 15 to 20 minutes and cool."]
["flour", "sugar", "cocoa", "vanilla", "water", "salt", "soda", "vinegar", "oil"]