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, green onions, and sesame seeds. Stir until the 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 optimal flavor and tenderness.
04 - Preheat a grill or grill pan over medium-high heat. Remove ribs from marinade, allowing excess liquid to drip off.
05 - Grill ribs for 3 to 4 minutes per side until caramelized and cooked through, developing a slight char around the edges.
06 - Transfer grilled ribs to a serving platter. Sprinkle with sliced green onion and toasted sesame seeds. Serve immediately with steamed rice and kimchi if desired.