Wacky No Egg Chocolate Cake
["1 tsp. baking soda", "1 Tbsp. vinegar", "1 c. milk", "3 Tbsp. cocoa", "2/3 c. oil", "1 tsp. vanilla", "1 c. sugar", "1/4 tsp. salt", "1 1/2 c. flour"]
["Sift dry ingredients, then combine all other ingredients and mix thoroughly.", "Pour into a greased 8-inch square pan.", "Bake at 350\u00b0 for 30 minutes.", "Pour frosting on warm cake."]
["baking soda", "vinegar", "milk", "cocoa", "oil", "vanilla", "sugar", "salt", "flour"]