01 - Rinse the beef short ribs under cold water to remove any bone fragments. Pat thoroughly dry with paper towels.
02 - In a large bowl, combine soy sauce, brown sugar, honey, mirin, sesame oil, minced garlic, grated ginger, grated pear, grated onion, black pepper, sliced green onions, and sesame seeds. Whisk vigorously until the sugar completely dissolves.
03 - Add the short ribs to the marinade, turning each piece to ensure thorough coating. Cover the bowl and refrigerate for at least 4 hours, preferably overnight for optimal flavor penetration.
04 - Preheat a grill or grill pan over medium-high heat. Remove ribs from the refrigerator and let excess marinade drip off before cooking.
05 - Place ribs on the hot grill and cook 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 generously with sliced green onion and toasted sesame seeds. Serve immediately while hot, accompanied by steamed rice and kimchi if desired.