The hornazo of Peña Muñana Food and drink · Cadalso de los Vidrios, Sierra Oeste, Madrid Image of Cadalso de los Vidrios, not of the place itself. A pilgrimage festival at which the locals climb to the spot of Peña Muñana to eat the hornazo, a cake with a boiled egg held by a cross of dough. It is the gastronomic event that opens the fine weather in the municipality. Lunes de Pascua Photo: Fotografia enviada per Hugo What to see and do in Cadalso de los Vidrios