Cut the lamb into large pieces. Peel the potatoes, cut them into wedges, and set aside in bowl of cold water. Chop the onion.
Put the onion in a pan (preferably earthenware) with the oil and sauté over medium heat for 3 to 4 minutes, or until almost translucent. Add the lamb pieces and brown over medium heat, turning frequently. Add the wine and let it evaporate. When the odor of the al