Sift together:

1/2 c. cocoa
1 tbsp. baking powder
1/4 tsp. nutmeg
2 c. flour
1 tsp. cinnamon

Add:

2/3 c. shortening
1/2 c. milk
1 c. mashed potatoes
2 c. sugar
3 egg yolks

Mix thoroughly.

1/2 c. chopped nuts may be added if desired

Beat egg whites until stiff but not dry. Fold gently into cake batter Pour into greased and floured 2 (10 inch) cake pans.

Bake at 350 degrees for 35 minutes or until top springs back when lightly touched. When cool, put together with your favorite icing.