The best-known quesillo comes from Tafí del Valle, in Tucumán's highlands, where cheesemaking dates back to the Jesuit estancias of the 1700s.
Quesillo, a fresh stretched-curd cheese pressed into thin, flexible sheets, is drizzled with dark, thick cane syrup and sold at roadside stands and market stalls across Tucumán as a simple dessert or afternoon snack. The sweetness of the syrup plays against the mild, salty cheese.