Sugar-baked chestnut

The first time I saw baked chestnut in Europe it was like running into an old friend in a foreign land. Then later I realised it is a popular winter snack in a lot of countries. Here’s how baked chestnut is made here — with a big “wok” and some kind of heated small dark pebbles and sugar. A tasty snack but it will soon go out of season. I vaguely remember it is called Maroni(?) in Italian, just wonder what it’s called in other European languages…