Prawn wonton soup
For the wontons
For the soup
To make the wonton filling, finely chop the prawns. Transfer to a glass or ceramic bowl, and stir in the garlic, spring onion, soy sauce, fish sauce, coriander and egg yolk.
Lay the wonton wrappers on a work surface in a single layer, and put about 1 tablespoon of the filling mixture in the centre of each. Brush the edges with egg white and fold each one into a triangle, pressing lightly to seal. Bring the two bottom corners of the triangle around to meet in the centre, securing with a little egg white to hold in place. Cover with a damp tea towel or cloth until needed.
To make the soup, put the stock, fish sauce, soy sauce and rice wine in a large heavy saucepan, and bring to the boil over a medium heat. Add the chillies and spring onions. Drop the wontons into the pan and simmer for 4–5 minutes, until thoroughly heated. Serve immediately.