It is possible to buy perfectly acceptable bottled duck sauce, also known sometimes as plum sauce, however homemade is just wonderful. We have found many ways to use it, not just for Chinese food.
Enough plums, peaches and apricots to make 5 cups when pared, pitted and chopped
1/2 cup red wine vinegar
1 cup sugar
Step 1. Boil a pot of water; drop each piece of fruit into the boiling water for one minute and remove. Slip off skins. Chop fruit into small pieces, discarding pits.
Step 2. Combine vinegar and sugar. Place fruit in a large stainless steel pot and add vinegar-sugar mixture. Bring to a boil, reduce heat and simmer for 1-1/2 hours, stirring occasionally. Adjust seasoning if necessary. Serve cold.