Plot: Hosts Bridget Lancaster and Julia Collin Davison unlock the secrets to making the best Roast Boneless Leg of Lamb with Garlic, Herb, and Bread-Crumb Crust. Equipment expert Adam Ried reveals his top pick for traditional 12-inch skillet, and test cook Erin McMurrer makes Bridget a showstopping Lemon-Olive Oil Tart