Cheese is a dairy product derived from milk that both humans and Smurfs eat.
Empath: The Luckiest Smurf stories[]

In the EMPATH: The Luckiest Smurf story series, cheese is mostly made by Gelato Smurf from milksprout plants and is used in various kinds of meals, snacks, and desserts, including pizza which Biscotti Smurf makes. One particular type of cheese that was made resembled Limburger and hardly any Smurf wanted to touch it except for Sloppy because of its smell. Cheese can be ground into a seasoning that is used for various kinds of chips and crackers.
Cheese and crackers happens to be Vino's and Fencer's favorite food to eat with a glass of wine.