One of the hottest cultural imports for Ysgal in the 2000s was eggnog. The Ysgal palette favors strong, satisfying flavors and the ysgalin body- especially centaurs!- requires a lot more fat and protein than the average human.
Where an american child might consider the cosmic brownie when asked to think of a snack they identify with the 2000s nostalgic zeitgeist, an Ysgalin child would consider the pint bottles of eggnog grabbed from a corner store, each one printed with an image of Bililidænd in different costumes from her adventures, in much the same way.
It's still exceptionally popular in modernity and is considered a springtime beverage amongst most Ysgalin, though certain regions do consider it a summer beverage. One of my Ysgalin OCs, Thuli had a jetlag meltdown when the first 7/11 she went to in america didnt have eggnog in may. She pulled the cooler door off.