As a matter of fact, I just got the recipe this morning to share with some co-workers. Here it is:

1 (1#) can sweet potatoes
1/2 teaspoon salt
1/4 teaspoon cinnamon
1/4 teaspoon nutmeg
1/4 cup butter
2 eggs
1 teaspoon vanilla
1/2 cup sugar

Whip these together and put in a buttered casserole dish.

Topping:
1/4 cup soft butter
3/4 cup brown sugar
3 tablespoons flour
1/2 cup chopped pecans

Mix together topping ingredients and sprinkle on top of sweet potato mixture. Bake at 350 for 30-40 minutes.

Note: This recipe makes a very small amount. When increasing the recipe you need to adjust the butter and eggs or it gets very soupy and doesn't bake right. My mother makes 4X this recipe and uses about 3/4 cup of butter and 3 eggs in the sweet potato mixture. She says you might want to adjust the sugar as well.)