From the Netherlands, these sound scrumptious, either for lunch or as appetizers. They may need more cooking time. Note: To cook large batches for a party, assemble the sandwiches a few hours before cooking and chill them on a baking sheet, wrapped in plastic wrap. Before serving, brush melted butter onto the outsides of the sandwiches and broil on a baking sheet, turning once. From Sunset magazine, May 2007. Posted for ZWT 2010.