Directions

1. Score a diamond pattern into the ham, about 1/3 inch deep. Place the ham, flat side down, in a large oven roasting bag. In a large bowl, whisk wine, oil, sliced shallots, garlic, mustard, coarsely chopped tarragon and parsley, and peppercorns together to combine. Pour into the bag and close securely with a rubber band. Insert the bag with the ham into the second bag and twist the bag closed. Place in a large bowl. Refrigerate, turning occasionally, for at least 12 and up to 18 hours.
2. Preheat oven to 325 degrees F. Position the rack in the lower third of the oven.
3. Line the bottom of a shallow roasting pan with aluminum foil.