Here ya go: piece of cake...erm I mean pie!
You can use this same recipe with fresh pumpkin puree or a can of pumpkin if you have it.
Filling:
3 large eggs
2 cups fresh sweet potato puree (peeled - boiled sweet potatoes - then mashed - drain any excess water or liquid - do not mash with butter or margerine)
1/2 cup heavy whipping cream
1/2 cup light brown sugar
1 teaspoon ground cinnamon
1/2 teaspoon ground ginger
1/8 teaspoon ground cloves
1/2 teaspoon salt
Bake the pie for about 45 to 55 minutes (at 190C) or until the filling is set and the crust has browned (the center will still look wet). (A knife inserted about 1 inch from side of pan will come out almost clean.)