John's Gin Marinade
This is my step-dad's recipe, which is incredible with beef tenderloin steaks or even less expensive cuts of meat like flank steak. The best part is, you can use it as a basting sauce while grilling.
To use during grilling, pour the marinade into a small saucepan, and add 1/4 cup of butter and 1 ounce of sweet vermouth. Bring to a boil over medium-high heat, and cook for 5 minutes to kill any bacteria. Baste the meat with this marinade while grilling.