I'm trying to figure out what they use here http://www.mezeskalacsajandekok.hu/ if its a cookie at all, lol.
What kind of cookies?
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I believe they are ginger cookies, although the designs could be piped on other kinds (e.g., sugar cookies). The white piping shows nicely on the gingerbread color. Take a look at the photos posted here on CC by IrinaVS (she just added quite a few; http://cakecentral.com/g/u/877355/IrinaVS/photosets/1/) and Agathy (http://cakecentral.com/g/u/775130/Agathy/photosets/1/). Those are two of my favorites.
You can also see
This is a video of Agathy (Nadia) decorating a sugar cookie. She makes it look so easy.
Sugar cookies of course, gingerbread cookies (Williams Sonoma recipe is awesome) and rolled chocolate cookies. Any rolled cookie that holds its shape. If you have a rolled cookie recipe that spreads too much, try it with decreased leavening. Also, try recutting the cookies with the same cutter immediately after removing from the oven when still hot and soft.
This is chocolate
I tested and combined several sugar cookie recipes until I got one that suited my taste and Greece's climate. It took weeks and many tries but I love my sugar cookies. They are so perfect for decorating either with royal icing or with sugar paste and the best part is they last. I keep the left overs from a batch that don't get used in the frig up to 3 weeks and they are perfect. You can't do that with every cookie. They can't be overcooked,that is important. You can add different flavors to give it a different twist to a normal sugar cookie. Good luck!
ahhh ok, I seemed to think it was more along the lines of 5"+ (that would be nice lol)