Add your 3 tablespoons of flour and oil to the hot pan. Stirring constantly until well mixed and slightly brown. Next add your water, bouillon cubes, steaks, and onions to the pan. Bring to a low simmer. Taste to adjust salt and pepper if necessary. Cover and let simmer for 30-40 minutes, or until steaks are very tender. Note: I like to mix the bouillon cubes and water together beforehand. You can easily substitute beef stock as well.