1 Brown the ribs: Preheat oven to 350°F. Season ribs to taste with the salt and pepper. Heat oil in a large, heavy bottomed ovenproof pan over high heat. Add ribs and brown on all sides. Work in batches if you need to so that the ribs don’t get crowded (this will help with browning).
2 Sauté vegetables: Transfer ribs to a plate. Pour off the excess fat (do not put down the drain or you will clog your sink!). Add the onions, celery, and carrots to the pan and sauté, stirring often, until lightly browned, about 5 minutes. Remove