Generate four clean duck leg bones, best is by making a broth from the legs and removing all meat afterwards. You can do this in advance
Remove the skin from legs and breasts. reserve for other purpose (like rendering duck fat)
Cut out the leg tendons and cut up the leg meat. The leg can be used in making the duck glace
Cut up the breasts in pieces
Move the meat twice through the course meat grinder
Add the spices and herbs
Cut up the cold butter in small pieces and mix with the ground meat
Add breadcrumbs and optionally an egg until the meat mixture is solid enough to make a ball that sticks together
Make four balls and coat them with breadcrumbs
Generate four clean duck leg bones, best is by making a broth from the legs and removing all meat afterwards.
Heat up the fat or oil in a frying pan and brown the balls on all sides on medium heat initially and on low heat later. In 15 minutes the meat inside the balls should be heated through.
Just before serving, stick a clean duck bone in each ball and serve on a bed of briefly grilled Chinese broccoli or spinach leaves
Pour the glace at the side of each ball and offer some extra in a sauce cup.