Japanese Saba No Misoni Mackerel Braised in Miso and Classic Simmered Fish Technique

Ingredients

• 2 saba (Pacific chub mackerel) fillets or portions, skin on; scored with 2–3 shallow cross-hatch incisions through the skin
• For the sake pre-treatment
• 100 ml sake, enough to immerse the fish briefly; discard after use
• For the braising liquid
• 200 ml water
• 45 ml (3 tbsp) sake
• 30 ml (2 tbsp) mirin
• 15 ml (1 tbsp) sugar
• 30 ml (2 tbsp) soy sauce
• 30 ml (2 tbsp) miso, aka (red) miso for assertive result; shiro (white) miso for sweeter, milder balance; regional preference applies
• 25 g fresh ginger, half cut into 5–6 mm slices for the braising liquid; half finely grated for finishing
• To serve
• 2 negi (green onion), sliced, to serve alongside
• 1 tsp fresh ginger, finely grated, to serve alongside

Method

1. 1
   Score 2–3 shallow cross-hatch incisions through the skin of each saba portion. Immerse the fish in sake for a brief period to draw out trimethylamine compounds through alcohol solubility. Discard the sake. The fish should show no residual surface liquid when lifted out.
2. 2
   Combine the water, 3 tbsp sake, mirin, sugar, and soy sauce in a wide, shallow pan. Add the ginger slices (5–6 mm thick). Bring to a simmer over medium heat. The liquid should be steaming and moving at the surface before the fish is added.
3. 3
   Lay the saba portions skin-side up in the simmering liquid. Set an otoshibuta (drop lid) directly on the fish. Simmer gently, basting the fish continuously through the action of the drop lid, until the flesh is just cooked through. The flesh at the thickest point should yield without resistance when pressed lightly.
4. 4
   This is where the dish lives or dies: remove the otoshibuta, dissolve the miso into the braising liquid — do not add it earlier — then raise the heat and reduce the liquid for 3–5 minutes, spooning the sauce continuously over the fish. The sauce must transform from a thin, pale liquid to a thick, dark, glossy glaze that adheres to and completely coats the fish; a sauce that pools thinly beneath the fish has not reduced sufficiently.
5. 5
   Remove from heat. Stir the grated ginger into the remaining sauce for aromatic lift. Plate each portion with the dark glaze spooned over. Serve with sliced negi and additional grated ginger alongside. The sauce should hold its gloss on the plate without spreading.