3 lbsKorean-style short ribs (beef chuck flanken), cut 1/3 to 1/2 inch thick across bones
Method
1Pour soy sauce, water, and vinegar into a large, non-metallic bowl. Whisk in brown sugar, white sugar, black pepper, sesame oil, garlic, and onion until the sugars have dissolved. Submerge the ribs in the marinade and cover with plastic wrap. Refrigerate 7 to 12 hours; the longer, the better.
2Preheat an outdoor grill for medium-high heat.
3Remove ribs from the marinade, shake off excess, and discard the marinade. Cook on the preheated grill until the meat is no longer pink, 5 to 7 minutes per side.
Notes
You can substitute chicken breast or sliced rib-eye for the short ribs. These can also be broiled in the oven for the same amount of time.