Chilli coriander dressing
Prawn with lime
1.To make chilli coriander dressing, whisk all ingredients in a small bowl until combined.
2.Remove heads and legs from prawns, leaving tail and back shell intact. Split the prawns along the underside to open out flat, leaving shells on.
3.Cook lime halves on a heated, oiled grill plate (or grill or barbecue) until browned lightly; remove. Brush prawns with oil; cook prawns on same grill plate until browned and cooked through.
4.Serve prawns with watercress. Drizzle with chilli coriander dressing and serve with limes.