2 1/2 cups cooked, still warm short-grain brown rice
Natto miso sauce:
5 tablespoons (rounded) natto, chopped
2 tablespoons miso, preferably mixed miso (made of 1 tablespoon white miso and 1tablespoon brown miso)
2 or 3 walnuts, roasted and chopped
1/2 tablespoon pine nuts, roasted and chopped
1 white stem of leek, finely chopped
1/2 teaspoon sake (rice wine)
1 teaspoon mirin (Japanese sweet cooking rice wine)
In a mixing bowl, add the miso, sake, and mirin and stir well.
Add the remaining ingredients of the natto miso sauce and stir to combine.
Divide the rice into 4 portions and make rice balls.
Spread the natto miso sauce on the rice balls.
Bake in a hot oven until the rice balls are crisp. Serve hot. Serves 2.