If you don't have a large ovenproof pot, do the whole recipe up to and including step 7 on the stove then tip it all into a baking pan. Proceed with recipe.
Nutrition per serving, assuming 6 servings and that all the sauce is consumed. The fat is higher than it should be because it doesn't take into account discarded fat after browning the skin. If you discard 2 tbsp of fat, then the calories reduces to about 640 calories per serve with 27g of fat.