Sweet Potato Cake
["1 1/2 c. cooking oil (Crisco)", "2 c. sugar", "4 eggs, separated", "4 Tbsp. hot water", "2 1/2 c. cake flour", "3 Tbsp. baking powder", "1/4 tsp. salt", "1 tsp. cinnamon", "1 tsp. nutmeg", "1 1/2 c. grated raw sweet potatoes", "1 c. chopped nuts (walnuts or pecans)", "1 tsp. vanilla"]
["Combine oil and sugar, beat until smooth.", "Add hot water and egg yolks then beat well.", "Sift together and add dry ingredients. Stir in potatoes, nuts and vanilla; beat well.", "Beat egg whites until stiff and fold into mixture.", "Bake in three greased cake pans for 25 to 35 minutes.", "Cool and frost."]
["cooking oil", "sugar", "eggs", "water", "cake flour", "baking powder", "salt", "cinnamon", "nutmeg", "sweet potatoes", "nuts", "vanilla"]