Kohada Nigiri Sushi

Kohada Nigiri Sushi (Gizzard Shad Nigiri)

A classic Edomae-style nigiri made with lightly cured gizzard shad (kohada), prized for its silvery skin, delicate brine, and clean, slightly tangy flavor. The fish is briefly cured in salt and vinegar, mirroring the centuries-old Tokyo Bay tradition.

Prep

45 min

Cook

25 min

Total

70 min

Serves

4 (makes about 12 pieces)

Difficulty

Medium

Recipe ingredients

• •200 g (7 oz) kohada (gizzard shad) fillets, thinly butterflied; substitute with small sardines or herring if unavailable
• •300 g (10½ oz) shari (sushi rice), short-grain Japanese rice seasoned with rice vinegar, sugar, and salt — see steps
• •30 g (2 Tbsp) fine sea salt
• •90 ml (6 Tbsp) rice vinegar
• •10 g (2 tsp) granulated sugar
• •5 g (1 tsp) soy sauce, for brushing the finished nigiri
• •10 g (2 tsp) wasabi, freshly grated, or null
• •1 sheet nori (optional), cut into 2 cm strips to belt the nigiri, or null

Steps

1. 1 PARASITE SAFETY (required): If using raw kohada (or sardine/herring substitute) and it has not been previously frozen, freeze the fillets at -20°C (0°F) or below for at least 7 days to destroy parasites before beginning the cure. Skip only if your fish is labeled sushi-grade and was commercially frozen for parasite control.
2. 2 Rinse the rice in cold water until it runs clear, then cook with 360 ml (1¼ cups) water until just tender. While it rests, gently warm 60 ml (4 Tbsp) rice vinegar with 10 g sugar and 5 g salt until dissolved; do not boil. Fold the seasoning into the warm rice with a cutting motion and cool to body temperature, fanning to give a glossy finish.
3. 3 Lightly score the flesh side of each kohada fillet with a sharp knife (two or three shallow diagonal cuts) so it will lay flat.
4. 4 Salt the fillets generously on the flesh side with the 30 g fine salt and let stand for 20 minutes in the refrigerator. This draws out moisture and firms the flesh.
5. 5 Rinse the fillets briefly under cold water and pat completely dry with paper towels.
6. 6 Lay the fillets skin-side down in a non-reactive dish and pour the remaining 30 ml (2 Tbsp) rice vinegar over them. Marinate for 10–15 minutes, turning once. The flesh should turn opaque and slightly whitened.
7. 7 Drain the fillets and pat dry again. Trim each into a piece roughly 6–7 cm long by 3 cm wide (about 2½ × 1¼ in), suitable for a single nigiri.
8. 8 Wet your hands with water (called tezu), then shape a small ball of rice about 20 g into an oblong 5–6 cm (2–2½ in) long. Lightly dab a smear of wasabi on top.
9. 9 Drape a kohada piece over the rice, skin side up and shiny side outward, pressing gently with two fingers to bind. Use a thin strip of nori to belt the middle if you wish — this is the traditional Edomae presentation.
10. 10 Brush the fish lightly with soy sauce just before serving. Serve at room temperature within 1 hour, ideally with a small mound of grated fresh wasabi and pickled ginger on the side.