Preheat the oven at 350˚F.
Remove giblets and rinse duck under cold water, pat dry.
Combine; cream, 2 tbsp. maple mustard, chopped chives and chopped garlic. Stuff duck with this mixture. Baste duck with remaining 2 tbsp. maple mustard.
In a roasting pan, poor 1-1/3 cup duck stock and lay the duck (breast up) on a small grill.
Cook covered 2 hours, basting every 15 minutes.
Uncover and cook 30 minutes longer, basting once.
Sauce