Making crackers keto friendly usually means relying on a dairy source, such as parmesan cheese. We used to buy parmesan cheese crackers at Costco, and you can also find products like Primal Thin Crackers on Amazon. The problem with dairy — and, in particular, casein (milk protein) — is that it's highly inflammatory and thus I recommend you stay away from it. As a result, I don't usually eat crackers.