3 pounds Korean-style short ribs (beef chuck flanken, cut 1/3- to 1/2-inch-thick across bones)
Directions
Pour soy sauce, water, vinegar, and sesame oil into a large, non-metallic bowl. Whisk in onion, garlic, brown sugar, white sugar, and pepper, whisking until sugars dissolve. Submerge ribs in the marinade. Cover the bowl and refrigerate 7 to 12 hours; the longer, the better.
Put in pressure cooker for twenty minutes.
Preheat your grill for medium-high heat.
Remove ribs from roaster or pressure cooker and drain marinade.
Grill until the meat is no longer pink, 5 to 7 minutes per side.