Sweet Potato Cake

1-1/2 c. cooking oil
4 eggs, separated
4 tbsp. hot water
2 1/2 c. sifted cake flour
3 tsp. baking powder
1/4 tsp. salt
1 tsp. ground cinnamon
1 tsp. ground nutmeg
1 1/2 c. grated raw sweet potatoes
1 c. chopped nuts
1 tsp. vanilla

Combine cooking oil and sugar and beat until smooth. Add egg yolks and beat well, then add hot water; then dry ingredients which have been sifted together. Stir in potatoes, nuts and vanilla and beat well on medium speed. Beat egg whites until stiff and fold into mixture. Bake in 3 (8 inch) greased pans at 350 degrees for 25 to 30 minutes.

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