I have always kept them at room temperature. They "age" to perfection. But they also do not last long at all. I try to keep them in a storage container for a week, but, that never lasts.
Lord, my emails haven't been getting to me. Invertase is a addition to liquefy sugars when you are not using a fruit soaked in alcohol. Yes the centers do liquefy in a couple of days. If you can resist them for a week you are golden.
thanks for all the nice comments and faves!
the hardest thing to do is let them sit and age.