Nigerian Charcoal-Grilled Tilapia with Suya Spice Marinade

How to Make It

1. 1

   Clean and Score the Tilapia

   Rinse the whole tilapia thoroughly under cold running water, ensuring the cavity is clean. Pat completely dry with a clean kitchen towel. Using a sharp knife, make 3 deep diagonal scores on each side of the fish, cutting through to the bone. This allows the marinade to penetrate deeply and ensures even cooking.

   Tip: Drying the fish before scoring prevents the marinade from slipping off and helps achieve a better char on the grill.
2. 2

   Prepare the Pepper Marinade

   Place the roughly chopped tatashe, scotch bonnet, half the red onion, 2 tomatoes, minced garlic, and fresh thyme into a blender. Blend to a smooth paste. Pour into a bowl and stir in the suya spice, smoked paprika, ground ginger, ground crayfish, lemon juice, low-sodium seasoning cube (if using), and salt. Mix thoroughly until a thick, aromatic marinade forms.

   Tip: For a deeper, more complex flavour, dry-toast the suya spice in a dry pan for 30 seconds before adding it to the marinade blend.
3. 3

   Marinate the Fish

   Generously rub the marinade all over both tilapia, ensuring it is massaged into all the scored cuts and inside the cavity. Place the fish in a dish or zip-lock bag, cover, and refrigerate for a minimum of 2 hours, ideally overnight. The longer marination time allows the anti-inflammatory spices to fully infuse the flesh.

   Tip: For busy weekday meal prep, marinate up to 24 hours in advance. The lemon juice in the marinade acts as a natural tenderiser without compromising the fish texture.
4. 4

   Prepare the Grill

   Set up a charcoal grill and allow the coals to reach a consistent medium-high heat with glowing orange embers and white ash — this usually takes about 20 to 25 minutes. If using a gas grill or oven grill, preheat to 200°C (400°F). Lightly grease the grill grates with a small amount of groundnut oil using a folded paper towel held with tongs to prevent sticking.

   Tip: Charcoal grilling imparts the authentic smoky flavour essential to this dish. If using an oven grill, place the fish on a wire rack over a baking tray to allow air circulation and charring on both sides.
5. 5

   Grill the Tilapia

   Place the marinated tilapia directly on the grill. Cook on the first side for 12 to 15 minutes without moving, allowing a proper crust to form. Brush lightly with groundnut oil halfway through the first side. Carefully flip the fish using a wide spatula and grill the second side for another 12 to 15 minutes until the flesh is fully opaque, flakes easily with a fork, and the skin is nicely charred in places.

   Tip: Resist the urge to move the fish too early — it will naturally release from the grill when a proper crust has formed. Forcing it off too soon causes the skin to tear.
6. 6

   Rest and Plate

   Remove the grilled tilapia from the heat and allow it to rest for 3 to 5 minutes before serving. This allows the juices to redistribute throughout the flesh. Arrange fresh lettuce leaves on a serving platter, place the fish on top, and garnish with sliced tomato, sliced red onion rings, and fresh cucumber. Serve immediately for best flavour and texture.

   Tip: For hypertension and kidney health clients, skip the seasoning cube entirely and increase the lemon juice and fresh herbs to boost flavour without added sodium.