2/3 cup butter
2 cup sugar
1 tsp. baking soda
2 cups all-purpose flour
2 tbsp. cocoa
1 tsp. allspice
1 tsp. cinnamon
1/2 tsp. cloves
1 tsp. nutmeg
1 1/2 cups raisins
1/2 tsp. salt
4 egg yolks, beaten
1 cup mashed cooked sweet potatoes
2 cups chopped nuts
1 cup buttermilk
4 egg whites, beaten
1 tsp. vanilla

Cream together butter, sugar and sift together dry ingredients. Add to butter and sugar. Add beaten egg yolks and potatoes. Combine raisins and nuts. Add to the sweet potatoes mixture. Add buttermilk. Fold in beaten egg whites. Add vanilla.

Bake in Angel Food Cake pan at 325°F for 1 hour, reduce heat to 300°F and bake 45 minutes.