300 g (10 1/2 oz) 1 1/2 cups long-grain rice
2 eggs
4 tsp cold water
salt and pepper
3 tbsp sunflower oil
4 spring onions (scallions), thinly sliced diagonally
1 garlic clove, crushed
125 g (4 1/2 oz) closed-cup or button mushrooms, thinly sliced
2 tbsp oyster or anchovy sauce
1 x 200 g (7 oz) can water chestnuts, drained and sliced
250 g (9 oz) peeled prawns (shrimp), defrosted if frozen
1/2 bunch watercress, roughly chopped
watercress sprigs, to garnish (optional)