a Great Lakes region flavor that's baby blue and tastes like fruit loops, marshmallows, marzipan, pistachios, and nutmeg/coriander. pretty sure lemongrass is involved. it's really difficult to find outside of Wisconsin and Michigan, but for the New Yorkers, i've found it in Buffalo and Ithaca.
there is no agreed upon flavor, but the aforementioned flavor notes are what make a great blue moon to me. some makers just do almond and raspberry and call it a day. that's weak.