How do you make au jus unsalted?

Brown some meat in a skillet, about a 1/4 in of veg oil, let it get brown, and a lttle burn in some spots, sticking to skillet is ok, once done, take meat out of pan and put on the side , leave the used oil in skillet with little pieces of broken meat and burned pieces, while it's still hot on med heat, and one or two tablespoons of white flour, stir around vigorously and allow to brown, keep stirring and avoid lumping, all at once pour in about a half cup of water , keep stirring vigorously. To avoid lumps, gravy will expand. And small amounts of water if you want thinner gravy:.. Salt and pepper to taste... Enjoy!