tortilla recipe with longest shelf life
Start with dent corn or flint corn. You get it in 50Lb bags at the local feed supply store $12. Nixtamalize, grind into masa add salt and water, press and cook into tortillas. Thye'll last a couple weeks. Wheat flour or sweet corn recipes will spoil faster. Yellow corn tortillas also have the advantage of actually tasting like corn; and they won't dissolve when you try to make enchiladas out of them like commercial, hyper-palatable tortilla-like-objects.