Dredge the ribs with flour and season with salt and pepper, then sear the meat on both sides with olive oil in a slow cooker (or a large Dutch oven, then transfer to the slow cooker)
Add the vegetables and the rest of the ingredients, including Erath wine
Cover the slow cooker with the lid and cook on high for 4 hours or low for 6-7 hours
Remove the ribs from the slow cooker and strain the fat from the cooking liquid. Transfer the rest of the liquid to a pan (or your dutch oven) over medium-high heat, bring it to a boil and let it thickens