Grilled Halibut

Halibut is one of the great firm-fleshed white fish, and it takes to the grill better than almost any other species. The flesh stays meaty and substantial under high heat instead of falling apart like flakier fish. The marinade is the kind of teriyaki-leaning blend that does a lot with very little: soy sauce for the salty umami base, fresh ginger for warm aromatic punch, brown sugar for caramelization on the grill, and garlic plus dry mustard for depth and a faint pungent kick. Four hours of marinating is long enough to season the fish through without breaking down the texture (longer than that and the soy sauce starts curing the surface like gravlax). The brown sugar is what makes the magic happen on the grates. As the fish cooks, the sugar caramelizes into a glossy, slightly charred crust that contrasts the snowy interior. A seafood grilling screen or oiled grill basket is the move that prevents the fish from sticking and breaking when you flip it.

Pro Tips

• Choose halibut steaks at least 1 inch thick. Thinner cuts overcook quickly and dry out before the marinade caramelizes.
• Pat the fish dry before marinating. Surface moisture dilutes the marinade and prevents proper browning.
• Oil the grill grates well or use a fish basket. Even firm fish like halibut can stick if the grill isn’t prepared.
• Pull the fish off when it just barely flakes with a fork. ‘Well done but not dry’ means an internal temp of 130°F (54°C).
• Boil any leftover marinade for 2 minutes if you want to use it as a finishing sauce. Don’t brush raw marinade on cooked fish.

Variations

• Add 1 tablespoon of toasted sesame oil and a teaspoon of rice vinegar for a more traditional Japanese profile.
• Substitute mirin or sake for half the soy sauce to deepen the teriyaki character.
• Swap halibut for salmon, tuna, swordfish, or any firm white fish. Adjust cooking time based on thickness.