In a bowl, boil milk. Simmer to low heat and stir continuously for 20 minutes until it thickens and reduces to half of the original quantity. Mix sugar and allow it to cool down ( for smoother texture of mishti doi blend the mix in a mixer after adding sugar ).
In a small pan, caramelize 2 teaspoons sugar ( in a pan heat sugar on a low heat till light brown color). Pour this caramelized sugar to thickened milk and stir well.
Add 3 teaspoons curd and stir gently. Pour this mixture in earthen bowls and keep aside for 6 - 7 hours.
Later keep these in refrigerator for 5 hours to set completely. Serve cool.