Prepare the fish: Rinse and pat dry. Score the skin diagonally on both sides to help it cook evenly.
Season: Mix olive oil, garlic, salt, pepper, and paprika. Rub all over the fish, including inside the cavity.
Make the glaze: Combine apricot jam, lemon juice, and mustard in a small bowl and stir until smooth.
Grill the snoek: Preheat a medium-heat grill. Place the fish on the grill, skin side down first. Cook for 5–7 minutes per side, depending on thickness.
Glaze: In the last 5 minutes, brush the apricot mixture over the fish. Let it caramelize slightly but don’t burn.
Servieren: Place the fish on a platter and serve immediately with extra apricot jam on the side, along with pap, salad, or roasted vegetables.