I’m pretty sure these cookies made with chocolate kisses will disappear too fast for you to worry about how long they’ll last! But you can keep them in an airtight container and they should be fine for a couple of weeks. Another idea is to freeze chocolate cherry blossoms for up to a year. A word of advice here: make sure the chocolate cherry blossoms cookies are completely cool before putting them in the storage container. If not, they will release more steam/moisture and this will make them soggy.