Many keto cookies struggle to stay together because they lack the gluten that holds together gooey cookies. To avoid this issue, make sure you allow the dough to chill before baking AND you allow the cookies to cool on the pan. When the cookies are still hot, there's nothing (no gluten) to keep everything together. If you give them time to cool, they'll solidify into an easy-to-eat cookie less likely to crumble apart.