Preheat the oven to 210°C.
Whizz the sauce ingredients together in a blender. If you don't have a blender then crush &/or slice the garlic very finely and thoroughly mix everything together in a bowl.
Place the pork slices into a roasting tin, pour over the sauce then turn them over to cover them all over.
Pop the tin into the hot oven for 45-50 minutes, turning every 10 minutes or so, until they are well browned.
Serve with roast or mashed sweet (or normal) potatoes and green vegetables of your choice.