Mishti Doi is a traditional Bengali sweet yogurt that is made by fermenting sweetened milk. It has a thick and creamy texture with a caramelized flavor. This dessert is often served chilled and is a popular choice during festivals and special occasions in Bengal. The secret to making perfect Mishti Doi lies in slow cooking the milk until it thickens and then adding a touch of jaggery or sugar for sweetness. The yogurt is then set in earthen pots, which gives it a unique flavor and aroma.