Place the short ribs in the slow cooker. Season with salt and pepper. Add the onions and garlic over the ribs.
our in the Coca-Cola, cover and cook until the meat is separating from the bones, 5 to 6 hours on high or 7 to 8 hours on low, or according to the slow cooker manufactureru2019s recommendation.
Using a slotted spoon, transfer the ribs to a plate and cover with aluminum foil. Skim the excess fat off the sauce. Season with salt and pepper and add the scallions. Cook for about 15 minutes more.
Spoon the sauce over the ribs and rice, serve immediately.