Pumpkin roll

This is very similar to the banana rolls I love to make. Aaron suggested it for FHE treat this week. I got this recipe from my MIL, who I believe got it from her mother.

3 eggs
1 c. sugar
2/3 c. pumpkin
1 tsp. lemon juice
3/4 c. flour
1 tsp. baking powder
2 tsp. cinnamon
1 tsp. ginger
1/2 tsp.nutmeg
1/2 tsp. salt
1 c. nuts chopped (optional)

Beat eggs on high in blender for 5 minutes. Add sugar gradually. Fold in pumpkin. Add lemon juice. In a medium bowl stir together dry ingredients (except nuts). Then add to pumpkin mixture.
Pour onto greased and floured 15x10 pan. Top with chopped nuts if desired. Bake for 15 minutes in a 350 F oven. Sprinkle a flour sack - or towel (not terry cloth)- with powdered sugar. Loosen with spatula and dump cake onto towel. Roll up like a jelly roll (it's OK if the towel is rolled up inside). Cool for at least 20 minutes and then unroll and frost. Reroll and wrap until ready to cut and serve. Can be frozen.

Frosting:
1 8 oz. pkg cream cheese
4 tsp. butter
1 c. powdered sugar
1 tsp. vanilla