We are experiencing probably the last cold spell of the year. Days are bright and sunny, and nights are clear and frosty. Befitting the cold, I made some Uyghur polo, a dish made from fatty lamb, onions, carrots and a lot of garlic. All simmered until tender, with rice added midway to absorb all the flavors. It was very tasty and very close to the version I had so often at Pear Garden in Korla …