Popcorn

Popcorn was a snack food enjoyed by Humans. It is corn that has been heated up causing the moisture in the kernel to expand (or pop) into a softer editable commodity. Popcorn is commonly enjoyed while watching movies or sports.

Samuel Cogley included popcorn as part of the ambiance of going to a movie theater. 

William T. Riker served popcorn when he invited Data and Worf to his quarters to watch the action-movie Missing Link 3: Vacation in Armageddon.