When did popcorn become gourmet? We’re not really sure, but popcorn flavored with all kinds of things is available in tins, boxes, and bags for snacking and gift giving. Popcorn is a type of corn that explodes into light, fluffy bite-size pieces when heated. A tasty and much loved snack most often found at movie theaters, popcorn can be flavored with sweet toppings like sugar and cinnamon or with salty flavors like cheese, smoked salt, or even bacon.