Thick halibut fillets are ideal for grilling. Their firm texture will maintain shape without flaking apart on the grill, and their mild flavor is enhanced by the char and smoke. While you can simply grill the fillets whole, try cutting the fish into large chunks and threading the pieces on skewers. The smaller pieces will expose more edges and corners to the fire, which increases charring and the coveted crispy bits.
In this recipe, a quick marinade adds more flavor to the mild halibut. A key ingredient in the marinade is coarsely grated onion. The onion pulp and juice contribute sweetness and sharpness, nicely acting as a tenderizer and balancing the salt and acidity. Alternate the pieces of fish with sweet peppers and red onion on the skewers. The grilled vegetables will infuse more flavor into the fish and provide appealing color to the skewers. (Adding vegetables is also a great way to stretch pricey fish to feed a crowd.)
Grilled Halibut Skewers
Active Time: 20 minutes Total Time: 1 hour for marinating plus 20 minutesServes 4 to 6
- 1/4 cup coarsely grated yellow onion with juices (about 1/2 medium onion)
- 1/4 cup soy sauce or tamari
- 2 tablespoons fresh lemon juice
- 2 tablespoons extra-virgin olive oil
- 1 heaping tablespoon Dijon mustard
- 1/2 teaspoon freshly ground black pepper
- 2 pounds center-cut halibut fillets, cut in 1-inch chunks
- 2 red, yellow and/or orange bell peppers, seeded, cut in 1-inch chunks
- 1 large red onion, cut in 1-inch chunks
- Parsley sprigs for garnish (optional)
- Lemon wedges for serving
While the halibut is marinating, soak 8 to 10 (8-inch) bamboo skewers in warm water for 30 minutes.
Prepare the grill for direct cooking over medium-high heat. Thread the fish onto the skewers, beginning and ending with the halibut and alternating with onions and peppers. Lightly brush the vegetables with some of the marinade.
Grill the skewers over direct heat until the fish is charred in places and just cooked through, about 8 minutes, turning as needed. Arrange the skewers on a serving platter. Garnish with parsley sprigs and serve warm with lemon wedges.







