Prepare the Konnyaku: Make lattice-like cuts on the surface of the konnyaku block, then cut it into six pieces. Thread them onto skewers.
Boil the Konnyaku: Bring a pot of water to a boil, add the konnyaku, and boil for 2 minutes. Drain the konnyaku and pat it dry with paper towels to remove excess moisture.
Make the Miso Glaze: Combine the miso paste, sugar, mirin, and sake in a small saucepan. Cook over medium heat, stirring occasionally, until the sauce thickens slightly, about 2-3 minutes.
Serve: Transfer the konnyaku to a serving plate and pour the miso glaze over them.
Notes
Storage: Store in an airtight container in the refrigerator for up to 3 days. When ready to eat, reheat in the microwave until warm.
Boiling konnyaku helps to remove any residual odor, firm up the texture, and allow the flavor to be easily absorbed.
If you have leftover miso glaze, it makes a delicious topping for steamed vegetables, grilled eggplant, or drizzled over shiratama dango (sweet rice dumplings)!