A family friend will be spending a couple of days at our house (while I'm away) and she has to stick to a gluten free diet. I was thinking of helping out by preparing a dish or 2 in advance. The 1st one could be beef enchiladas. Corn tortillas, with shredded brisket. I'd create the enchilada sauce but would have to sub arrowroot or something else as a thickener. Any suggestions or cautions? I've read up a little on avoiding wheat, barley, malt, rye, etc. Many prepared sauces evidently use flour as a thickening agent and can be listed under many names, so I thought best just to make it myself.