Heat oven to 400ºF and line a baking sheet with foil. Mix together all the ingredients except the barbecue sauce and marmalade. Form mixture into 1 ¼-inch balls and place on baking sheet.
Cook meatballs until done, about 20 minutes. Mix together the barbecue sauce and marmalade and brush on meatballs while still hot. Serve garnished with extra chopped parsley.