Frenching a rack of lamb—that is, removing the meat, fat and membranes that connect the individual rib bones—gives the rack a clean look for an elegant meal, and is a satisfying butchering technique you can do at home with a little practice. Senior Food Editor/Test Kitchen Manager Jennifer Armentrout demonstrates how it’s done.Frenching a rack of lamb—that is, removing the meat, fat and membranes that connect the individual rib bones—gives the rack a clean look for an elegant meal, and is a satisfying butchering technique you can do at home with a little practice. Senior Food Editor/Test Kitchen Manager Jennifer Armentrout demonstrates how it’s done.