The simplest protein we know is our grandmother’s marinated flank steak — a recipe whose source she has long forgotten, but which we like to think was inspired by her childhood in Japan and her golden years in the South: pour a half-cup of bourbon, a half-cup of soy sauce and a half-cup of water into a freezer bag, add the steak, seal shut and marinate for four hours in the fridge.
Preparation of Grilled Flank Steak
Step 1. In small bowl, whisk together bourbon, soy sauce and half a cup of water to make a marinade. Pour marinade into a gallon-size self-sealing food storage bag. Put steak in bag, and turn it over several times so that the entire cut is coated. Marinate in refrigerator 4 hours, turning steak once after 2 hours. Pour off marinade and blot steak dry with paper towels.
Step 2. Prepare a fire in the grill. When flames have subsided and coals are glowing, grill steak 4 minutes on one side for rare, 5 minutes for medium rare. Turn steak, and grill 3 or 4 minutes more, to taste.
Step 3. Transfer steak to a cutting board, lightly cover with aluminum foil, and let rest 5 minutes. Slice steak crosswise into 1/8-inch-thick slices.