Hmm-My first reply didn't get posted for some reason.

I'm not laughing at the corn flour as thickener suggestion. I use it in chili. Other easy thickeners that are actually pre-cooked include finely ground (dry) bread, cracker, or cookie crumbs, or infant cereals. Consider pulverized ginger snaps for thickening an Asian or German-inspired sauce (Like Teriyaki or Sauerbraten). The upside of using infant cereals for thickening, in addition to their being pre-cooked, is that they are highly fortified with iron. Crackers will add a significant amount of sodium, so unless you feel you are sweating heavily and need to replace some, be careful.

CamperMom