In UK we always say 9th of August 2023, ie the way our dates are written and i would say is more natural haha. Maybe Americans find it more natural the other way around because your dates are other way around. If you use the date system the uk has maybe it would sound more natural to speak perhaps.
In cookie lingo, double chocolate means the cookie dough is chocolate flavoured as well as having choc chips. Triple chocolate means the chocolate dough with choc chips also has a chocolate coating on the bottom.