I usually flour, salt, pepper and then brown the roast in some bacon drippings before baking
it....may not be necessary, but that's just me (the way we like it).
Mix together onion soup mix, cream of mushroom soup and water.
Put roast in a roasting pan (or your Dutch Oven) and pour soup mixture over top of roast.....cover with foil.
Cook overnight for at least 6 hours.
Take out of oven, slice.