A traditional Bengali pithe made during Makar Sankranti or Poush Sankranti (in Bengal) is Dudh puli.
Bengali fashion Dudh puli is a half-moon-shaped stuffed rice cake or dumpling that is cooked in dudh or milk. You cook sweet coconut-jaggery rice cake in jaggery combined milk in this Bengali dudh puli recipe.
However, this is not your average jaggery; instead, it is a winter special Bengali date palm jaggery called as nolen gur or notun khejur gur in Bengali.