To our gluten-sensitive friends, fear not, for this Crock Pot Christmas Crack can easily become a treat in your holiday repertoire. Most of the ingredients inherently lack gluten, but vigilance is your companion on this culinary sleigh ride. Ensure that every chocolate and peanut butter chip you select is certified gluten-free, as some brands may cross-contaminate or use gluten-based additives. Almond bark is typically a safe bet, but a quick check of the label for the reassuring 'gluten-free' stamp won't go amiss.