DIRECTIONS
Combine the olive oil, lemon juice, lemon zest, mustard, salt, garlic and thyme in a large mixing bowl and whisk until smooth. Place the bluefish fillet in the bowl with the marinade or transfer both to a ziplock bag. Swish the bluefish fillets around until fully coated. Allow the bluefish to marinate at room temperature for 15 minutes while you prepare the grill. Light up your grill and oil the rack – or place an indoor grill pan over medium-high heat. Place the fish flesh-side down close to the heat source. Grill for 3 to 5 minutes per side, depending on the thickness of the fish. If less than 1-inch thick, aim for less than 8 minutes total time. If grilling a whole fish, you will likely need closer to 10 to 15 minutes total. You will be able to tell when the fish is done as it will begin to come apart at the seams and flake. Transfer the fish to a platter or plate and garnish with extra lemon wedges, if desired, and the herbs.