To make the marinade, measure all the ingredients into a shallow dish and mix well. Add the short ribs and mix well to coat. Leave for 2 hours or overnight in the fridge, if possible, to marinate.
Remove ribs and add scallions, garlic, both mustards, thyme, rosemary. Saute for approximately 2-3 minutes then add in the wine, beef broth and water. Bring to a boil and add back in the ribs.