'Cookies' come out on top among 38% of young people over other sweet options such as croissants or 'pain au chocolat' The secret for many bakers lies in experimentation and impact on social networks. A neighborhood bakery in Paris has constant lines of tourists and young people eager to try the crookie.

The croookie is sold for 5.90 euros, the sum of the price of the croissant and its cookies. It has the chocolate cookie dough inside, slightly cooked, and two more baked flakes of dough on the outside.