Wacky Cake
["1 1/2 c. flour", "1 c. sugar", "3 Tbsp. cocoa", "1 tsp. baking soda", "1 tsp. salt", "5 Tbsp. cooking oil", "1 tsp. vanilla", "1 tsp. vinegar", "1 c. cold water"]
["Combine dry ingredients and put in ungreased 9 x 13-inch pan. Make 3 wells in dry ingredients.", "Pour oil into one, vanilla into another, and vinegar into the third one.", "Pour cold water over all and stir to mix well.", "Bake at 350\u00b0 for 40 minutes."]
["flour", "sugar", "cocoa", "baking soda", "salt", "cooking oil", "vanilla", "vinegar", "cold water"]