Confit de canard (preserved duck) is another of those things that is often almost impossible to get outside of France, but in France weighs down the supermarket shelves. It is usually bought in tins containing four – six portions of duck, preserved in goose fat. Confit de canard is essentially duck that has been cooked by simmering in oil for a while, then preserved in goose fat.
To prepare a confit, the meat is rubbed with salt, garlic, and sometimes herbs such as thyme, then covered and refrigerated for up to 36 hours. Salt-curing the meat acts as a preservative.
Prior to cooking, the spices are rinsed from the meat, which is then patted dry. The meat is placed in a cooking dish deep enough to contain the meat and the rendered fat, and placed in an oven at a low temperature (76 – 135 degrees Celsius/170 – 275 Fahrenheit). The meat is slowly poached at least until cooked, or until meltingly tender, generally four to ten hours.
The meat and fat are then removed from the oven and left to cool. When cool, the meat can be transferred to a canning jar or other container and completely submerged in the fat. A sealed jar of duck confit may be kept in the refrigerator for up to six months, or several weeks if kept in a reusable plastic container. To maximize preservation if canning, the fat should top the meat by at least one inch. The cooking fat acts as both a seal and preservative and results in a very rich taste. Skipping the salt curing stage greatly reduces the shelf life of the confit.