Sweet Potato Cake
["1 1/2 c. salad oil", "2 c. sugar", "4 eggs, separated", "4 Tbsp. hot water", "2 1/2 c. all-purpose flour", "1 Tbsp. baking powder", "1/4 tsp. salt", "1 tsp. ground cinnamon", "1 tsp. ground nutmeg", "1 1/2 c. grated raw sweet potato", "1 c. chopped pecans", "1 tsp. vanilla extract", "Coconut Filling (see recipe)"]
["Combine oil and sugar in a large mixer bowl.", "Beat until smooth.", "Add egg yolks; beat well.", "Stir in hot water.", "Combine dry ingredients.", "Blend into sugar mixture.", "Stir in grated potato, pecans and vanilla, blending thoroughly.", "Beat egg whites until stiff.", "Fold into batter.", "Spoon mixture into three 8-inch cake pans.", "Bake at 350\u00b0 for 25 to 30 minutes.", "Remove from pans.", "Cool on wire racks.", "Spread Coconut Filling between layers and on top of cake.", "Yields three 8-inch layers."]
["salad oil", "sugar", "eggs", "water", "flour", "baking powder", "salt", "ground cinnamon", "ground nutmeg", "sweet potato", "pecans", "vanilla extract", "Coconut Filling"]