Never Fail Chocolate Cake
["2 c. white sugar", "1 c. butter or Crisco", "2 1/2 c. white flour", "1/3 c. cocoa", "1 tsp. salt", "1 tsp. baking powder", "2 tsp. soda", "1 c. sour cream (can put 1 Tbsp. vinegar in milk to sour)", "3/4 c. hot water", "4 egg yolks", "2 tsp. vanilla", "4 egg whites, beaten (add last and fold in)"]
["Cream sugar and butter; add egg yolks one at a time and beat well.", "Sift dry ingredients together three times.", "Add alternately with sour cream and water.", "Fold in stiffly beaten egg whites. Bake in 3 (9-inch) layers about 25 minutes in a 375\u00b0 oven."]
["white sugar", "butter", "white flour", "cocoa", "salt", "baking powder", "soda", "sour cream", "hot water", "egg yolks", "vanilla", "egg whites"]