I learned how to make this pie after my mother passed away. I updated her recipe and make my version by roasting the sweet potatoes and not boiling. Roasting carmalizes the sweet potatoes, makes it tast nutty and sweet, and I never have any leftover due to everyone loving the roasted taste versus the boiling taste of the sweet potatos. Plus the house doesn't feel so sweaty hot with roasting the potatoes. Have fun making this wonderful pie.