In a small bowl, stir the 1 tablespoon soy sauce, 1 tablespoon sake, 1 tablespoon evaporated cane sugar, and ¼ teaspoon salt together until the sugar is mostly dissolved. If you get impatient, you can pop the sauce in the microwave for a few seconds to speed things up.
1 tablespoon soy sauce, 1 tablespoon sake, 1 tablespoon evaporated cane sugar, ¼ teaspoon salt
To prepare the 12 grams spinach, wash and dry each leaf thoroughly. Trim out the thick stem in the center and then stack and dice the leaves into ⅛-inch (3mm) pieces.
12 grams spinach
Add the 30 grams toasted sesame seeds, 25 grams katsuobushi, and spinach to a bowl and stir to combine.
30 grams toasted sesame seeds, 25 grams katsuobushi
Drizzle the sauce over the mixture evenly and then stir everything together until the sauce is evenly distributed.
Dump the furikake onto a parchment paper-lined baking sheet spread it into an even layer.
Put the Furikake in the oven and set the oven to 250 F (120 C) and bake for 10 minutes.
Remove the pan from the oven and use chopsticks to stir the mixture and break up any large clusters.
Put the pan back in the oven and continue baking for another 10 to 15 minutes, or until the Furikake is completely crisp and has no damp pieces.
Let the Furikake cool to room temperature and use scissors to shred the 3 grams nori on top.
3 grams nori