01 -
Rinse Japanese rice in cold water approximately three times or until water runs mostly clear, then soak in fresh water for 30 minutes.
02 -
In a separate bowl, mix dashi stock, soy sauce, mirin, cooking sake, and grated ginger together; set mixture aside.
03 -
Peel and cut Japanese sweet potato into evenly sized chunks. Thinly slice rehydrated shiitake mushrooms.
04 -
Drain the soaked rice and transfer to the cooker. Pour seasoned stock over the rice, then gently layer sweet potato and shiitake mushrooms on top without mixing.
05 -
Seal the pressure cooker. Cook on high pressure for 2 minutes, then allow a natural pressure release for 10 minutes.
06 -
Open the cooker, gently stir ingredients to combine, and serve immediately.