Sweet potato soup is a great way to start a meal. It fills you up, and its sweet warmth complements many winter dishes. We love these little soup shooters from Domino; we'd love a shot of this right now! This recipe is also a good leftovers-buster: it was designed to use up leftover baked or mashed sweet potatoes. The curry is a good touch here; we find that sweet potatoes often benefit from a spicy or more heavily seasoned touch.