Heat the coconut oil in a skillet over medium heat. Add the minced onion, garlic, and ginger, and sauté for about 3 minutes until fragrant. Shred the vegetables and tofu in a food processor, then add them to the skillet along with the spices. Cook for another 5 minutes, stirring occasionally. Transfer the mixture to a bowl and let it cool slightly before filling your dumplings..
Fill Dumplings
Place a heaping teaspoon of filling in the center of each gyoza wrapper. Fold and seal the dumplings tightly (see the step-by-step photos and video above for folding tips).
Store them in the fridge for up to 2 days, or freeze any dumplings you won’t be cooking right away.
Cook Dumplings
Heat 1 tablespoon of sesame oil (or another neutral oil) in a skillet. Arrange the dumplings in a single layer without crowding the pan (otherwise they’ll stick together). Cook for about 3 minutes, until the bottoms are golden brown.
Add ¼ cup water, cover with a lid, and steam for 5 minutes. Remove the lid and cook for another 2 minutes, until the bottoms turn crispy again.
Mix together the dipping sauce, garnish with sesame seeds or chopped scallions if desired, and serve the dumplings warm.
Notes
Freezing: Place uncooked dumplings on a baking sheet lined with foil and freeze for 1–2 hours, making sure they don’t touch. Once frozen, transfer them to a freezer bag and store for up to 1 month. Cook them straight from frozen (no need to thaw), just steam for 2 minutes longer.
Spicy kick: Add sriracha or sambal oelek to the filling or dipping sauce if you like it hot.
Smoked tofu: I prefer using smoked tofu because it contains less water and adds extra flavor. If you use regular tofu, press it well before cooking to avoid excess moisture.