6. They are consumed for sport
The paczki-eating record stands at 23 pastries in 15mins, held by a dude in Hamtramk, MI (a mostly Polish town within Detroit). That's approximately 11,000 calories and 550g of fat.
7. They have small amounts of booze in them
Much like the folks who wake up early to bake them fresh, most paczki have a little bit of grain alcohol in them. The spirit helps the pastry avoid absorbing too much fryer grease.
8. Hipsters are getting in on the paczki game
Common paczki fillings include plums, lemon, chocolate, and raspberry. Others include rose-petals -- a common ingredient in Polish cuisine -- and maple bacon -- a common ingredient in hipster cuisine.
9. There's a movie about them
In 2004, Army Armstrong Films released Paczki: The Movie!, a documentary about paczki making in Lorian County, Ohio (trailer here!). Army Armstrong also produced such classics as Hollywood Comes to Vinalhaven, Ancient Futures: Learning from Ladakh, and the owl documentary Who Lives In Your Backyard.
Andy Kryza is Thrillist's national eat/drink senior editor, and his last name is the reason "Y" is sometimes a vowel. Follow him to a Polish bakery at @apkryza.