2. Add the gin, grapefruit juice, and a large scoop of ice cubes. Cap and shake vigorously.
3. Strain into 2 martini glasses and garnish with the grapefruit peel twists.
Adam Rapoport, editor in chief of Bon Appetit magazine and the website www.bonappetit.com, knows his way around a grill. He has edited an entire book on the subject: The Grilling Book: The Definitive Guide from Bon Appetit.