Season the ribs with sea salt, ground black pepper, and garlic powder. Heat the avocado oil over high heat in a large, heavy-bottomed skillet. Add the ribs to the pan and cook for 2 ½ minutes. Flip and cook for another 2 ½ minutes.
Add the seared ribs to the bowl of a slow cooker. Pour the beef broth over the ribs. Sprinkle the ranch seasoning mix and the brown gravy mix evenly over the ribs. Arrange the butter evenly over the ribs. Close the slow cooker and cook on low for 8 hours.
Transfer the ribs to a serving plate. Pour the cooking juices into a saucepan and bring to a boil. Whisk in the cornstarch and cook until the sauce has thickened.
Pour the sauce over the ribs and serve.
Notes
The rub for this original recipe is so good you can even use it on your next pork chops, pork roast, pork shoulder, or basically any shoulder area of the pig or cut of pork.