It is thought to have originated in Brussels, but is also popular in Flanders, Wallonia, and the Nord region of France, where it is also known as an "Américain" (literally an "American").
Hal ini diduga berasal dari Brussel, namun juga populer di Flandria, Wallonia, dan wilayah Nord di Prancis, di mana ia juga dikenal sebagai "Américain" (secara harfiah merupakan "orang Amerika").