Jook Recipe

Quick-pickle ramp bulbs

Combine the thinly sliced ramp bulbs and kosher salt in a small bowl and massage gently for 1 minute to draw moisture. In a separate small cup dissolve the sugar in the hot water, then add the rice vinegar and stir. Pour the vinegar-sugar mixture over the salted ramp slices, press down so they are submerged, cover and refrigerate for at least 30 minutes (can be made up to 24 hours ahead). Drain before using; reserve 1–2 tsp pickling liquid for the sauce if desired.

Char shallots, garlic, and ramps

Heat a cast-iron skillet or heavy grill pan over high heat until smoking. Toss the halved shallots, smashed garlic, and ramp leaves in 1 tablespoon neutral oil and a pinch of salt. Place cut-side down (for the shallots) and press gently so the shallots and ramps make good contact with the pan. Char for 2–4 minutes until you have deep brown/black blistering but not fully burnt; turn and char the reverse briefly (about 1 minute). Remove and set aside on a cutting board.

Build the allium sauce

Return the pan to medium heat, add 1 tablespoon butter and the charred aromatics. Lightly chop the charred shallots/garlic/ramps and add to the pan. Add the soy sauce, mirin, rice vinegar, sugar, and 60 ml water. Simmer gently for 3–4 minutes, stirring and scraping browned bits from the pan to incorporate flavor. Taste and adjust — the sauce should be savory with a mild sweet-acid balance. If too salty, add up to 1–2 tsp water. Keep warm over the lowest heat.

Finish the sauce

If you like a silkier texture, blend the pan mixture briefly with an immersion blender or in a small blender until slightly emulsified, then return to the pan and simmer 30 seconds. Stir in 1 teaspoon neutral oil to shine the sauce and set aside in the warm pan. Reserve a few crisp charred ramp leaves for garnish.

Prep the black cod

Pat the fillets dry with paper towels. Season both sides lightly with the salt and white pepper, concentrating a touch more on the skin side to help crisping. Let sit at room temperature for 10 minutes while the pan and sauce are prepared.

Pan-sear the cod

Heat a large nonstick or stainless-steel skillet over medium-high heat until hot. Add 2 tablespoons neutral oil and swirl. Place the fillets skin-side down and press gently with a spatula for 10–15 seconds to ensure full skin contact. Cook undisturbed for 4–6 minutes, depending on thickness, until the skin is deeply golden and crisp and the fish is cooked about two-thirds of the way through. Flip carefully and cook the flesh side for 1–2 minutes until the fish registers ~125–130°F (52–54°C) for moist, just-cooked black cod. Remove to a plate and rest 2 minutes; residual heat will finish cooking.

Plate and finish

Spoon a generous pool of the charred allium sauce onto warm plates. Place a fillet atop the sauce, skin up if you want to highlight the crispness. Scatter several pieces of the quick-pickled ramp bulbs alongside and drape a few reserved charred ramp leaves over the fish. Sprinkle the thinly sliced scallion tops and, if using, drizzle 1/2 tsp toasted sesame oil and a light dusting of lemon zest over each portion. Serve immediately.