If there is outdoor skating, there is always koek en zopie – a stall, often set up by people whose homes border the water, selling koek (biscuits) and zopie (something to drink). Today zopie is usually hot chocolate or thick pea soup, but according to the Telegraaf, the word comes from zuipie – tipple – and in the 17th century it meant a generous slug of jenever (Dutch gin).