4 eggs
3 c. sugar
1 c. oil
2 c. mashed, sweet potatoes or pumpkin
1 c. liquid
3 1/2 c. flour
1/2 tsp. baking powder
2 tsp. baking soda
1 tsp. cinnamon
1 tsp. nutmeg
1 1/4 tsp. salt

Mix together eggs, sugar, and oil. Gradually add sweet potatoes and 1 cup liquid. If using pumpkin, add 1 cup water. Then add remaining ingredients. Mix well and spread in large jelly roll pan, lightly greased. (If too thick in pan, use an extra pan.) Spread 1 1/2 to 2 cups chocolate chips over top and bake at 350 degrees for 25 minutes. Don't overbake. This makes a lot.