I was watching Freevee and ran across an old show called "On Our Own" from 1977. It stars Lynnie Greene and Bess Armstrong. On Season 1 Episode entitled "Some like it Glazed", the two actresses moonlight as Donut workers leading to a pretty good food fight around the 17.30 mark.

Unfortunately, I don't have the ability to capture the video. Maybe someone has the ability to do it.

Cute scene. There's still mainstream WAM if you look hard enough but they really don't make food fights like that anymore. I like the tall one's tit-for-tat food fight style.