Rinse the fish under cold running water to clean then pat dry
Rub the crushed garlic on the inside of the fish and sprinkle the KNORR Thick White Onion Soup inside and rub to distribute the soup powder evenly
Place the sliced onion and tomatoes on the one half of the fish and top with the chopped herbs then fold over to enclose the filling
Melt the margarine, KNORR Vegetable Stock Pot and lemon juice and zest together then brush this over both sides of the fish to prevent it from sticking to the braai grid. Reserve any leftover marinade for basting
Place the fish onto a hinged braai grid and braai over medium to low heat coals for about 15 minutes on each side. Only turn the fish once and baste continuously while cooking. The fish is done when the flesh is white and no longer glossy and flakes easily.