Salt the meat well and brown on all sides in a little fat.
Mix the mustard, honey and rosemary together, season with pepper and ginger as desired. Let the meat cool down a little and cover with the marinade.
Fill a casserole with a grid halfway with water. Add the garlic, peppercorns, star anise, rosemary, place the meat on the grid. The water shouldn`t touch the meat. Bake at 180 ° -200 ° until the internal temperature of the meat has reached 75 °, so a meat thermo is required here.