While I normally recommend using white sweet potatoes for dessert recipes, for this one, use the orange variety. Make sure you roast the sweet potatoes, rather than steam or microwave them. Slow roasting caramelizes them and brings out the natural sweetness. You can pour the finished pudding into popsicle molds and freeze for a delicious frozen treat. Batch cook sweet potatoes, peel, and freeze so you will always have them on hand to make this tasty treat.