3 cups sugar

1 teaspoon walnut extract (optional)

1 cup cooking oil

1 teaspoon vanilla

4 eggs, separated

2/3 cup sweet potato liquid

2 teaspoons soda

3-1/2 cups flour

1 teaspoon salt

1-1/2 teaspoons cinnamon

1 teaspoon nutmeg

1/2 teaspoon cloves

1 cup dates or raisins

1 cup chopped pecans

1 cup chopped walnuts

 

Mash potatoes and combine with sugar, flavorings, and oil.  Beat in egg yolks and 2/3 cup sweet potato liquid.  Mix in nuts.  Sift all dry ingredients together; add to sweet potato batter.  Fold in stiffly beaten egg whites.  Bake in 2 tube pans or 4 (1 pound) coffee cans which have been greased and floured for 1 hour at 350 deg.