MAKES ABOUT 2-1/2 TABLESPOONS
EQUIPMENT: An electric spice mill.
Large handful dried cèpe (porcini) mushrooms (about 10 g)
1/2 sheet dried nori seaweed, torn into small pieces
1/4 teaspoon sea salt
1 tablespoon plus 1 teaspoon dried bonito flakes
Grind the ingredients to a fine powder in the spice mill.