Hi Jody, Here is one which gets steamed for 3 hrs. and nothing is said about ageing it. But you probably could , I am typing it just the way it is found in the Mennonite community cookbook, here it is.

Carrot Pudding
1 cup grated raw carrots
1 cup grated raw potatoes
1 cup sugar
1/3 cup shortening
1 cup flour
1/2 tsp. salt
1 tsp. cinnamon
1 tsp. soda
1/3 cup hot water
1 cup raisins
1/2 cup chopped figs
1/2 cup chopped dates
1/2 cup chopped nuts

Cream shortening and sugar together.
Add grated carrots, potatoes and chopped dried fruit.
Sift flour; measure and add salt soda and spices. sift again.
Add sifted dry ingredients alternately with hot water.
Add chopped nuts and blend into mixture.
Turn into a well greased pan or mold with cover and steam for 3 hrs.
Serve with your favorite sauce
Makes 8 servings.

I hope you will be able to use this. Good Luck, I have not tried this myself.