If you want to impress your friends, you can convert your sweet potatoes into a delicious soufflé with just a few turns of the mixer. Soufflés rely on beaten egg whites for their characteristic fluffy lift that's so pretty to present at the table, and we have two recipes for you to try. Both start with a base of precooked, mashed sweet potatoes; this version has a shorter prep time, and it lets the natural flavor of the sweet potato really shine through. The other recipe includes brown sugar, cinnamon, nutmeg and sherry, making it a great addition to your Thanksgiving dinner menu. Regardless of which variation you make, sweet potato soufflé is guaranteed to impress the eyes and the taste buds.