The Pastry Chef Adding to Japan’s 400+ Flavors of Kit Kat

Yasumasa Takagi, a classically trained pastry chef, walks through his Tokyo kitchen where he has invented more than 50 of Japan's 400-plus Kit Kat flavors, from wasabi to purple sweet potato. Nestle's local marketing team credits him with keeping the candy bar a national obsession decades after it started as a foreign import.

Why it's free: Free on Great Big Story's own channel; Great Big Story produced it in-house.