A mukbang is an online audiovisual broadcast in which a host consumes large quantities of food while interacting with the audience.
It became popular in South Korea in 2010, and since then has become a huge worldwide trend. Varieties of foods, ranging from pizza to noodles, are consumed in front of a camera. (according to Wikipedia)
I don't know why, but I'm fascinated with watching these, and judging by the YouTube views, I am CERTAINLY not alone.
Photo credit: EatSpicywithTee on Instagram