Thai grilled salmon

Instructions

1 Roughly chop the watercress and place in a food processor with the mint, garlic, and chillies and process until roughly chopped. Add the juice from the limes, sugar, ginger and fish sauce and process until a paste is formed. Add a little water if needed.

2 Place the salmon fillets in a non-metallic dish and use the paste to coat the salmon evenly. Cover the fish and leave to marinate for at least 30 minutes, or ideally 2-3 hours.

3 To prepare the dressing, mix all the ingredients together. Chill until needed.

4 Cook the salmon on a hot griddle or non-stick frying pan for 4-5 minutes each side. Serve with a spoonful of dressing (if using), lightly roasted potatoes and salad leaves.