What is "rousquille"

The rousquille or rosquille is a type of sweet-tasting biscuit particular to Catalonia, including the French region of Languedoc-Roussillon. It is a ring-shaped, soft and crumbly pastry often covered with a layer of sugar icing.

It originated in the south of Spain, its name coming from a Spanish word meaning "little wheel" (rosquilla).