Sweet Potato Cake
["6 eggs, separate egg yolks", "3 c. self-rising flour", "2 1/2 c. sugar", "3/4 c. Crisco oil", "2 c. grated potatoes", "1 tsp. cinnamon", "1 1/2 c. chopped pecans", "1 tsp. vanilla"]
["Combine sugar, egg yolks and oil all together; beat 3 minutes. Beat egg whites to a stiff peak.", "Add to flour and sugar; beat for 3 minutes.", "Add pecans and bake in 3 layer cake pans.", "Bake at 350\u00b0 until done."]
["eggs", "flour", "sugar", "Crisco oil", "potatoes", "cinnamon", "pecans", "vanilla"]