2 teaspoons (about 1g) dried wakame (see note above)
1 teaspoon (about 0.5g) dried hijiki (see note above)
12 ounces (340g) raw sashimi-grade tuna, cut into 1/2-inch cubes
3 ounces (85g) sweet onion, such as Maui or Vidalia, cut into 1/4-inch dice
1 scallion, thinly sliced
1 teaspoon (about 3g) white or black sesame seeds, or a mix
4 teaspoons (20ml) soy sauce, more or less to taste
2 teaspoons (10ml) toasted sesame oil, more or less to taste
1 teaspoon (5ml) honey, more or less to taste
Crushed red pepper, to taste (optional)
Kosher salt
Steamed rice (if eating as a meal)