Directions

1. Cook sweet potato chunks in a covered pot of boiling water until very tender, about 8 minutes. Drain and rinse until cool to the touch. Transfer sweet potato to a mixing bowl.
2. Use the back of a fork to mash the sweet potato until mostly smooth. Add the soy sauce, sesame oil, shallot, garlic, cilantro or chives, and ginger, and stir well.
3. To assemble the gyoza, brush the edges of a won ton skin lightly with water (use a clean finger or a small pastry brush). Place about a teaspoon of the sweet potato mixture in the center of the wrapper. Fold the wrapper in half and make 5-6 small pleats as you seal the wrapper together, pinching gently to ensure total closure. Repeat with the remaining filling and wrappers, until all the gyoza are made.
4. To cook the gyoza, heat 2 tbsp of oil in a large frying pan (make sure it has a fitted lid and set it near the stove), over medium heat. Working in batches, arrange the gyoza close to one another (but not touching) in the pan) and let cook for 2-3 minutes, until a golden crust begins to develop on the bottom. Flip the gyoza, and cook on the other side for 1-2 minutes, until a crust develops.
5. Carefully pour about 3 tbsp water over the gyoza, then cover the pan quickly and let steam for about 3 minutes.
6. Remove the lid and let the gyoza aerate until the excess water is cooked away and the bottoms become crisp again.
7. Transfer the cooked gyoza to a serving platter, repeat with the remaining uncooked gyoza, then serve immediately, with soy sauce for dipping.