Hoisin (or Hoi Sin) sauce also known is Chinese barbeque sauce, can be found pre-made in a jar at the supermarket. I prefer to use the Fountain brand, but there are many options these days. I've served this recipe hot as a main meal with an Asian Vegetable Stir-fry as a side dish. I've also brought them to a social function and thread them on small skewers, they were eaten cold as finger food. Ten minute marinating time is included in preparation. You can marinate this overnight or just ten minutes.