Sprinkle roast with salt and pepper and dredge in about half a cup of flour.
Heat oil in a large Dutch oven or roaster pan that can be placed in the oven.
Brown meat on all sides.
Add about a pint of water, cover roasting pan with lid and place in 350° oven.
Bake about 2 hours.
Put in potatoes, carrots and onions, if using.
Add another cup or pint of water if necessary.
Salt and pepper vegetables.
Cook in oven another hour to an hour and a half, or until carrots are cooked all the way through.
Remove carrots, potatoes, and onions to a casserole dish.
Remove meat to a platter and slice.
Place roaster pan on stove top on medium high heat.
Starting with about a half cup of flour, add cold water and whisk until mixture becomes runny.
Whisk into broth mixture from meat.
Season with garlic powder, pepper, parsley and a few drops of Kitchen Bouquet seasoning.
If necessary, whisk another batch of flour paste into broth from meat in order to get a thickened gravy.
Serve with meat and vegetables.