The origins of this chilled cherry soup are Hungarian. But I came to know this dish by way of a memorable Christmas breakfast with Paul’s family. Between courses of oyster stew and cardamom bread, there was a mysterious ruby-hued soup. Combining the warmth of cardamom with the sweet tartness of cherries, this Chilled Cherry Soup is tangy, vivid, and refreshing: a lovely foil to the richness of holiday feasting.