5 pounds beef short ribs, cut into 1-rib pieces if necessary
all-purpose flour seasoned with salt and pepper for dredging
1/4 cup rendered bacon fat
4 garlic cloves, chopped
6 small onions (about 1 pound total), unpeeled but chopped
6 carrots, sliced
1/2 teaspoon dried rosemary, crumbled
3 cups beef broth