Sweet curd, also known as misti doi, is a traditional Bengali dessert made from fermented sweetened milk. It has a creamy and thick texture with a hint of caramelized flavor. The process involves boiling milk, adding sugar, and then allowing it to ferment overnight. The end result is a deliciously sweet and tangy dessert that is often served chilled. Misti doi is a popular dessert during festivals and special occasions in Bengal.