What would winter be without snow? (The Bahamas, that’s what.) Winter with snow is what made Currier and Ives famous, what gives New Englanders character, and what causes some people to regard year-round Maine residents as a bit dotty. I, for one, was happy to see the snow a couple of weeks ago. I want at least one weekend when walking down the sidewalk in front of my house resembles McMurdo Station, when everyone exercises the exquisite protocols that dictate who first steps aside, and who passes. This week’s recipe is what all of us hope to find when we come inside from shoveling, a dish that fills the air with aromas as good as a back rub, Lamb Stew with Chick Peas, Preserved Lemon and Saffron.