Easy Chocolate Cake
["3 c. flour", "2 c. sugar", "6 Tbsp. cocoa", "2 tsp. baking soda", "1 tsp. salt", "1 Tbsp. vanilla", "2/3 c. oil", "2 c. water"]
["Mix all ingredients thoroughly in a 9 x 13-inch rectangular cake pan.", "Bake at 375\u00b0 for 40 minutes."]
["flour", "sugar", "cocoa", "baking soda", "salt", "vanilla", "oil", "water"]