Since winter is here, let's talk about nolen gur The subtle fragrance and taste of nolen gur — or new jaggery — is unlike any ingredient used in traditional Bengali sweets. And if the winter is as cold as it should be, the richness of the date palm juice and the consistency of the gur produced from it increases. My favourite blogger Sayantani has a wonderful article here about winter sweets made with nolen gur. Her photos, like the one here, are gorgeous as usual.
http://www.ahomemakersdiary.com/2011/01/nolen-gurer-sandesh-bengali-cottage.html