Our daughter will turn three this year, and we are considering beginning a tradition of visiting Christmas markets, perhaps every other year. It makes the most sense to start with one that's well geared towards smaller children. Because she's young, and the way our timing works, we'll only have a few days to make the trip - four or five days on the ground. So we'd like to find probably two or three relatively close together. My wife has been to the major tourist sites in Germany and Austria, but I never have. Any suggestions for markets well suited to small children?
Bonus difficulty (and the main thing that makes this different from other similar questions): My wife is allergic to wheat, so it'd certainly be a plus if a recommendation accounted for a wide range of food options, but we can get around this if necessary.