Chinese duck sauce is made with plums, apricots, sugar, and spices. It is a condiment served with duck, chicken, pork, and spareribs. It is also often referred to as plum sauce. Vegetarians will also enjoy using duck sauce (which they are likely to prefer calling plum sauce) with noodles, rice, and grilled or stir-fried vegetables. It is a great way to add something extra to take-out. This delicious sauce is quite easy to make at home, but you need to plan far ahead as it needs to sit for 2 weeks before being used. While there are even simpler recipes out there that use prepared preserves, you'll appreciate the difference in using your own fruit and spices.