01 - Rinse the beef short ribs under cold water to remove any bone fragments. Pat dry thoroughly with paper towels.
02 - In a large bowl, whisk together soy sauce, brown sugar, honey, mirin, sesame oil, minced garlic, grated ginger, grated pear, grated onion, black pepper, sliced green onions, and sesame seeds. Stir until the brown sugar completely dissolves.
03 - Add the short ribs to the marinade, turning to coat each piece thoroughly. Cover the bowl and refrigerate for at least 4 hours, preferably overnight for maximum tenderness and flavor penetration.
04 - Preheat a grill or grill pan over medium-high heat. Remove ribs from the refrigerator and let excess marinade drip off.
05 - Grill ribs for 3 to 4 minutes per side until caramelized and cooked through, developing a slight char around the edges for authentic flavor.
06 - Transfer grilled ribs to a serving platter. Sprinkle with additional sliced green onion and sesame seeds. Serve immediately alongside steamed rice and kimchi.