Singapore noodles with prawns

Name: Singapore noodles with prawns
Ingredients: 2 nests thin vermicelli rice noodles; 1 tbsp light soy sauce; 1 tbsp oyster sauce; 2 tsp mild curry powder; 1 tbsp sesame oil; 1 garlic clove, chopped; 1 red chilli, thinly sliced (deseeded if you don't like it too hot); thumb-sized piece ginger, grated; 1 medium onion, sliced; 1 red pepper or yellow pepper, cut into thin batons; 4 spring onions, cut in half lengthways then into batons; 8 raw king prawns; 1 large egg, beaten; coriander leaves, to serve