Dry the short ribs thoroughly with paper towels before adding to the slow cooker to help them develop a deeper caramelized crust and richer flavor foundation.

Add sesame oil in the final 15 minutes of cooking rather than at the beginning to preserve its delicate nutty aroma and prevent it from becoming bitter during the long cooking process.

Mince ginger and garlic into a fine paste and let them sit for 10 minutes before adding to the slow cooker; this activates their enzymes and intensifies their flavors significantly.

After cooking, transfer the finished ribs to a plate and simmer the liquid on high for 10-15 minutes to concentrate the sauce into a rich, glossy glaze that coats the meat beautifully.

Spread half the onions on the slow cooker bottom first, then place ribs on top, then add remaining onions; this creates a natural flavor infusion from both above and below the meat.