Food & drink

1. Peel the prawns and discard the shells.
2. Using a small sharp knife, split the prawns partially and remove the fine digestive cord.
3. Pat the prawns dry with kitchen paper and combine with the salt, cornflour, and sesame oil and mix well.
4. Heat a wok or large frying pan until it is hot, then add the oil and prawns.
5. Stir-fry for 1 minute and remove the prawns with a slotted spoon.
6. In the remaining oil, add the chilli, black beans, garlic, and spring onions.
7. Stir-fry for 20 seconds and add the vinegar, soy sauce, and sugar.
8. Stir in the cornflour mixture and return the prawns to the wok.
9. Cook for another 2 minutes and serve at once.

Hint

The sauce can be doubled and tossed with fresh egg noodles or rice noodles for a one-dish meal.