Light Creamy Cake
["1/2 c. shortening", "1/2 c. butter, softened", "2 c. sugar", "5 egg yolks", "2 c. all-purpose flour", "1 tsp. soda", "1/4 tsp. salt", "1 c. buttermilk", "1 tsp. vanilla", "5 egg whites, beaten stiff"]
["Mix well; spoon batter into prepared 9-inch cake pans.", "Bake at 350\u00b0 for 25 to 30 minutes, or until cake tests done.", "Best with Coconut Pecan Frosting."]
["shortening", "butter", "sugar", "egg yolks", "flour", "soda", "salt", "buttermilk", "vanilla", "egg whites"]