Hershey'S Black Magic Cake
["4 7/8 Tbsp. cocoa", "3 tsp. baking soda", "1 1/2 tsp. vanilla", "1 1/2 c. strong coffee (3 tsp. instant coffee plus 1 1/2 c. water)", "1 1/2 c. sour milk (1 1/2 Tbsp. vinegar plus 1 1/2 c. milk)", "2 5/8 c. flour", "3 eggs", "3/4 c. vegetable oil", "3 c. sugar", "1 1/2 tsp. salt", "1 1/2 tsp. baking powder"]
["Beat on high for 2 minutes.", "Pour into greased and floured pan.", "Batter will be thin.", "Bake at 350\u00b0 for 30 to 45 minutes. Cake will be moist."]
["cocoa", "baking soda", "vanilla", "coffee", "sour milk", "flour", "eggs", "vegetable oil", "sugar", "salt", "baking powder"]