The document summarizes the tradition of the calçotada, a spring party in Catalonia centered around eating calçots (a type of sweet onion) and romesco sauce. It describes calçots and how they are grown, provides a recipe for traditional romesco sauce, discusses artichokes as another vegetable commonly eaten at calçotadas, and outlines how a calçotada party is prepared and enjoyed, with people gathered around a barbecue dipping calçots in romesco sauce.