【How-to】How many calories in a paczki

But more specifically, it’s a delicious, sugar-dusted pastry packed full with custard, chocolate or fruit jelly – and is stuffed with more than 400 calories and 25 grams of fat, too. Traditional paczki are prune-filled, but you can relax: You can get them in apricot, lemon, blueberry and more these days.