[citation needed] For the thirsty, there was a semi-fluid zopie, consisted of a mixture of bock and home-made rum and other local ingredients.
Nowadays, the stalls primarily serve hot chocolate, pea soup, mulled wine and cookies or cake.
Until the 19th century, only shops selling alcoholic beverages on land or water were bound by law.
As long as there was ice for the koek-en-zopie stalls to stand on, they enjoyed protection from regulations.
Gambling and prostitution stalls were occasionally established on the ice in cities for the same reason.