KitKat Croissant from Japanese cafe chain, Pronto
A popular Japanese cafe bar chain, Pronto, added KitKat Croissant to their summer-time menu.
There are 2 flavors called "For Cafe" and "Maccha" available.
Luxurious KitKat "I LOVE FRUITS" series
For KitKat Croissant, they imported special croissant dough with cultured butter kneaded into it. A whole KitKat bar (that's half an American KitKat, JSYK) is wrapped inside the dough. You can enjoy the crispy texture from both the croissant's flaky layers and KitKat's wafers.
It's available for ¥170 during cafe hours, differing by store.