Kasztanki - Wawel

Not too sweet, but loved by children&adults. Dark chocolate with cocoa filling + lots of waffer crumbs. It's dry inside (as you can see on the photo), but also kinda heavy. One of my favorite. The quality is really high. The chocolates are made by one of the most known polish manufacturers :)
As far as I know, they are loved by foreigners, as the typical polish sweets.