Popcorn

Popcorn is a Human snack food made from cooked corn kernels, usually served with butter, cheese and/or salt. Since the early 20th century, it has been associated with films, as it is a traditional snack served at movie theaters.

On the Starfleet ship Enterprise, they had a "movie night" about once a week at which popcorn was usually served. 

Travis Mayweather once noted when Commander Tucker accidentally "cloaked" his hand that it could be useful at movie night, if you have a date, to steal popcorn. 

While he was living in the Las Vegas Lounge holoprogram in 2375, Nog enjoyed eating popcorn while watching movies such as Shane. 

In 2377, when Tom Paris recreated the Palace Theater, he also replicated some popcorn for his date with B'Elanna Torres. Later, when the crew was invited to a showing of Attack of the Lobster People, Neelix would offer popcorn (buttered and unbuttered) as they entered. Paris later ate popcorn while watching cartoons in his quarters after recovering from being brainwashed by the Quarren.