Prepare the Short RibsSeason the short ribs generously with salt and black pepper. Let rest at room temperature for 30 minutes.
Sear the RibsHeat a skillet over medium-high heat and sear the ribs on all sides until browned (3–4 minutes per side).
Prepare the Braising LiquidIn a pot, combine beef stock, soy sauce, brown sugar, honey, red wine, garlic, and thyme. Stir well.
Braise the RibsPlace the seared ribs into the liquid and bring to a gentle simmer.
Slow CookCover and cook in a preheated oven at 93°C (200°F) for up to 72 hours, maintaining a low simmer.
Rest the MeatRemove from oven and let rest for 15 minutes.
Finish and ServeSlice or serve whole with braising liquid spooned over the top. Garnish with green onions and sesame seeds.