Place the salmon fillets on a large plate, then drizzle with oil and season with black pepper, soy sauce, and onion powder. Gently rub the mixture all over the fillets.
Heat oil (around 1 tbsp) in a pan over a medium to high heat. Once hot, add the salmon fillets and fry them for 2 minutes on both sides (front and back).
Remove the salmon from the pan. Then add garlic and ginger to the pan and stir for a few seconds.
Add the sweet chilli sauce, diced coriander and lime juice, and leave the mixture to simmer for 2 to 3 minutes or until it’s reached your desired thickness.
Place the salmon fillets back into the pan and use a spoon to coat it in the sauce.