The caldereta and ajo arriero of the pinariegos Food and drink · Quintanar de la Sierra, Sierra de la Demanda, Burgos Image of Quintanar de la Sierra, not of the place itself. The stews that the men of the woodland ate are still the cooking of the sierra: the lamb caldereta cooked in the pine wood itself and the ajo arriero, potato and cod pounded with garlic and dried pepper. Photo: Viajar24h.com (CC BY 2.0) What to see and do in Quintanar de la Sierra