Step 1: Prepare the Marinade
In a mixing bowl, whisk together the olive oil, minced garlic, lemon zest, lemon juice, salt, and pepper. This marinade adds a burst of flavor to the mackerel, making it irresistible!
Step 2: Marinate the Mackerel
Place the mackerel fillets in the bowl, ensuring they are well coated with the marinade. Allow them to marinate for at least 15 minutes; if you have time, let them sit for up to an hour in the fridge. This step enhances the flavor and tenderness of the fish.
Step 3: Preheat the Grill
While the fish is marinating, preheat your grill or grill pan over medium-high heat. A well-heated grill is essential for achieving those perfect grill marks and a lovely smoky flavor.
Step 4: Grill the Mackerel
Once the grill is hot, place the mackerel fillets skin-side down on the grill. Cook for about 5–7 minutes, depending on the thickness of the fillets. Flip the fish carefully using a fish spatula and grill for an additional 5–7 minutes until the flesh is opaque and flakes easily with a fork.
Step 5: Let It Stand
After grilling, allow the mackerel to rest for about 5 minutes. This helps the juices redistribute, making the fish even more succulent.
Step 6: Serve
Plate the grilled mackerel and drizzle with any remaining marinade. Garnish with fresh herbs and lemon wedges for an extra pop of color and flavor.