i find them in every single bakery/ place that sells doughnuts around lent.

maybe down there they arent as popular, but at least in MI, and i know def in the chicago area they are hugely popular... its polish in origin, but its based on lent as a way to rid the home of fats because they arent to be consumed during lent.

ive been controlling myself from eating any for 4 days now and i finally broke down when i walked in and saw about 12 different fillings i had to have one