These were one of my favorite treats in Holland and they have vending machines in the streets where you can get them all the time, they even had them at the amusement park!! McDonalds in Holland has a McCroquette too! there's is like breaded breading on bread but it was quite popular hehehehe. They are not hard at all give them a try. Mix and match the fillings to your liking as long as your stuffing is not to sloppy they should turn out fine.