My go-to is 'Survival Cookies' ~ made according to the following recipe by Patrice Lewis of Rural Revolution:
http://www.rural-revolution.com/2026/08/survival-cookies.html
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As I understand it, the absence of eggs & other liquid ingredients in this recipe is not by accident (though, please note - the dough
*is* harder to work with than a standard, dairy-heavy cookie dough).
The phrase 'Survival Cookies' is a nod to the fact that - provided one uses shortening or lard instead of butter - the recipe relies entirely on dry/shelf-stable goods and non-perishable fats. Stuff many homesteaders and emergency-stockpilers already have deep stores of (including home-canned jam/preserves).
The cookies themselves are like little hardtack oat biscuit/cookie hybrids, not unlike a sweet expedition ration.