I have been trying to make Mishti Doi . I have made two variants so far a.Reduced a liter of full cream milk to half the qty or lesser and the sugars in milk have caramalised turning milk light brown and thicker .caramalised around 1.5 cups of plain sugar added cream to make a caramel sauce , waited till it cooled down and mixed it with milk .Allowed it to cool down until it was warm to touch and added a spoon of curd[mixed well] and poured into a earthern ware pot . b.same as above without cream . In both cases they dont set . I have used set curd from Britannia,Nilgris,amul and nandhini . I have also used loose curd from nandini . No luck I have tried referring to Harold Mcgee's book to see if I am doing anything wrong ,no luck ... I have also verified with a thermometer to hit 40C before I added a spoon of curd . I have heard Mishti Doi is rarely made at homes[i am not a Bengali] . Any help is deeply appreciated