I am a lawyer in Ct and practice in this area of the law.  I suggest that you obtain liability insurance for engaging in the retail food industry to protect you.  Secondly, i would call the consumer protection department and find out what permits or whatever you need to have a stand.  You can obtain this information on line as well.  I would also suggest seeing a lawyer to set up the LLC and confirm that you are obtaining the corect permits with the consumer protection department.