1 - step 1 Heat 1 tbsp of the oil in a wok over a high heat and stir-fry the pork in batches until browned all over.

2 - Remove with a slotted spoon and set aside.

3 - step 2 Turn the heat right down and add the remaining oil, then stir in the shallots, ginger and chilli.

4 - Cook over a low heat for a couple of mins until just starting to soften.

5 - Add the sugar, fish sauce and 200ml water to the pan and stir everything together.