I've read somewhere that there are two main cravings:
Salty/crunchy
Sweet/creamy

My biggest dietary downfall has always been ice cream, but as I've aged my digestive system has become less tolerant of milk. Commercial ice creams give me stomach cramps. HWC and sour cream don't effect me the same way. For some reason the "heft" of sour cream is more satisfying for me. I buy frozen fruit (without sugar added) and keep it on hand for when my cravings threaten me. My ice cream substitute is sour cream with AS and fruit, plus a bit of some tangy sugar-free syrup. Of course in berry season, fresh ones are a delight.