My daughter would like to make these for care packages our church is preparing for a senior care home. Will these hold up well? Also

Hi, that's so sweet! You can sprinkle salt into the batter instead of on top—kosher salt is my go-to, but whatever you have around will work. The only flag is that these cookies are pretty delicate, so they would have to be packaged carefully. Here are a couple of sturdier alternatives if you'd like:

https://food52.com/recipes/83881-best-chocolate-sugar-cookies-recipe
https://food52.com/recipes/25372-pierre-herme-dorie-greenspan-s-world-peace-cookies