The ostend fizz royale is a kir royale riff from the early 20th century, dug up by spirits columnist jason wilson at the washington post. Unlike the kir royale and its many imitators, the ostend fizz royale recipe has the non-sparkling-wine ingredients shaken first, rather than just poured straight into the glass. This helps to water them down a bit, and keeps the flavors from being too sweet and cloying. If you happen to have a sparkling ros instead of a sparkling white, dont worry Itll taste great.