Beef with broth

1 Tbsp. extra virgin olive oil 3 1/2 lb beef back ribs or possibly short ribs 7 1/4 c. beef stock or possibly canned beef broth 6 Tbsp. tomato paste 2 x bay[...]

2 tbs olive oil 6 lbs short ribs 1 tsp salt 3/4 tsp ground black pepper 1 large onion , finely chopped 1 medium carrot , finely chopped 1 celery rib, finely[...]