Sui mai dumplings

Name: Sui mai dumplings
Ingredients: 225 g wonton skins, thawed if frozen; leaves Fresh coriander; 250 g raw tiger prawns, peeled, deveined and coarsely chopped; 250 g minced fatty pork; 1 tsp salt; 1/2 tsp white pepper; 100 g fresh or tinned water chestnuts, drained if tinned, finely minced; 1 1/2 tbsp light soy sauce; 2 tbsp finely chopped spring onions; 1 tbsp chinese cooking wine (or dry sherry); 1 tsp sugar; 2 tsp sesame oil; 1 egg white, lightly beaten; Dipping sauces of your choice