Esquites

A little shop has recently opened on Calle del Ejido selling "esquites" .....a new word for us, or we'd just never noticed it before, or seen it under a different name. Sold in those foam cups, we assumed it was a drink of some kind, but the choice of ingredients (mayonesa, chipotle, habanero, jalapeno, etc) didn't sound like a very appetizing drink.

https://en.wikipedia.org/wiki/Esquites

Google Translate's version doesn't sound too yummy:

"Food that consists of a white, spongy mass, like the bud of a rose, which is formed when toasted and burst, by heat, a grain of maíz.esquite"