Marron chaud

Roasted chestnut is a popular autumn and winter street food in East Asia, Europe, and New York City. Asian chestnuts as well as European chestnuts (C. sativa) can be used. In China, chǎolìzi (炒栗子; "stir-fried chestnut") is a popular autumn street food. Because they are roasted with sand and sweet syrup, they are also called tángchǎolìzi (糖炒栗子; "sugar stir-fried chestnut"). Gunbam (군밤; "roasted chestnut") is a popular street food in both North and South Korea. The food is sold from late autumn to winter by the vendors wearing ushanka, which is sometimes referred to as "roasted chestnut vendor hat" or "roasted sweet potato vendor hat". A popular folk song called Gunbam taryeong (군밤타령; "ballad of roasted chestnuts") was composed by Jeon Su-rin in 1932, and has been sung since, being one of the songs commonly taught in public schools in South Korea.

Source: Wikipedia