Sweet Potato Cake
["1 1/2 c. grated sweet potatoes", "1 1/2 c. Wesson oil", "2 c. sugar", "4 eggs, separated", "1 tsp. vanilla", "1 c. chopped nuts", "2 1/2 c. cake flour", "3 tsp. baking powder", "1 tsp. cinnamon", "1 tsp. nutmeg", "4 tsp. hot water", "1/4 tsp. salt"]
["Combine cooking oil and sugar.", "Add egg yolks; beat well.", "Add hot water, then dry ingredients.", "Stir in potatoes and nuts.", "Then fold in beaten egg whites.", "Put in 3 layers and bake at 350\u00b0 for 25 to 30 minutes."]
["grated sweet potatoes", "Wesson oil", "sugar", "eggs", "vanilla", "nuts", "cake flour", "baking powder", "cinnamon", "nutmeg", "water", "salt"]