Carquinyols of Caldes de Montbui Food and drink · Caldes de Montbui, Vallès Oriental, Barcelona Twice-baked biscuit made with egg, milk, sugar, flour and whole almonds, of dark glossy crust and very crunchy texture. Its authorship has been attributed to Caldes since the beginning of the nineteenth century and it is taken accompanied by sweet wine. Photo: Francesc Fort (CC BY-SA 4.0) What to see and do in Caldes de Montbui