Sweet Potato Cake - cooking recipe

Ingredients

4 eggs
2 c. sugar
3 c. flour
2 tsp. baking powder
2 tsp. baking soda
2 tsp. cinnamon
1 1/2 c. Crisco oil
2 (6 oz.) jars sweet potatoes (baby food)
1/4 c. chopped walnuts (optional)

Preparation

Separate eggs.
Add 1 cup sugar to egg whites.
Beat until stiff; set aside.
Add 1 cup sugar to egg yolks.
Beat until light and fluffy; set aside.
In large bowl, add dry ingredients, then add egg yolks, oil and sweet potatoes.
Mix well.
It's a thick batter.
Add the stiffened egg whites and mix well.
Bake in well-greased large square pan for 1 hour in 350\u00b0 oven.