Season chops and brown on both sides in oil, in a large skillet.
Remove chops and place in a 9 x 13 baking dish.
In the skillet you browned the chops in, whisk in the flour and cook for 1 minute. If not enough fat add a little more. Now, add the soup mix and water. Whisk so as not to have lumps. Cook until thickening some.
Pour onion mixture over the chops. Cover with foil and bake for 30 - 35 minutes. Remove foil and bake another 30 - 35 minutes or until chops are tender.
Remove chops to serving plate. To the gravy in the pan whisk in the sour cream, until smooth.
Serve the gravy over the chops. I also make mashed potatoes. It's delicious served over them as well.