Nabadwip-er lal doi
Nabadwip-er lal doi, also known as Kheer doi or Chakku doi, is one of the most famous types of confectionery in the Bengal region of the Indian subcontinent, originating in present-day West Bengal, India. Though curd is usually white, red curd is a distinct type of confectionery. Red curd of the Nadia's Nabadwip type is very popular. Kali Ghosh or Kalipad Modak of Nabadwip was the inventor of the confectionery in 1930. One of the most famous red curd shop is "Laxmi Narayan Confectionery Store", that is 150-years old curd shop. After preparing the curd, it can be stored up to ten days.
History
There is a legend behind red curd. It is known from Nabadwip's archaeological council that the birthplace of red curd is Nabadwips Phasitala, and the inventor is Kali Ghosh. Kali Ghosh and Hari Ghosh were two brothers, they used to make mostly curd and whey. They used to boil buffalo milk in a gentle fire pouring a small amount of water to make it as condensed milk for a long time. The milk was turned reddish due to long burning. The two brothers used to make wheys from the milk. Their whey making area was known as Red Ghol or Red Whey. When milk becomes thick, it reaches to kheer stage, so sometimes it is called Kheer yogurt.Another name for this curd is Chakku yogurt. There is also a reason behind the name. The quality of the curd is judged on its stickiness. To test it, it is also seen by turning down the pot. Even a Chakku or a knife is inserted inside the pot. Thus the name of Chakku yogurt came from that knife.