Trim any sinew from the pork tenderloin, then cut it into 1½-2cm (½-¾") cubes and place it in a bowl.
Peel and dice the shallot as finely as you can.
Dice the chilli as finely as you can.
Peel and finely dice the garlic.
Peel and grate the ginger.
Add all of the ingredients for the pork to a bowl, then set aside for at least 30 minutes.
Now is a good time to soak the skewers if you are using bamboo skewers (you will need 6 for this recipe).
Mix together all of the ingredients for the peanut sauce and set aside.
Thread the marinated pork onto the skewers just before cooking.
Heat a griddle pan over a high heat and when it is fiercely hot, brush the pan with a little oil. Add the pork skewers and cook for 2 minutes on each side.