To make thick, creamy curd at home, boil milk, cool it to lukewarm, add a starter culture (a spoonful of previous curd), and incubate in a warm place for 6-8 hours until set. The key is maintaining the right temperature and using good quality milk.
Making thick, creamy curd at home is a simple process, but achieving the perfect consistency requires attention to a few key steps:
Boil the Milk: Start by boiling fresh, full-cream milk. Boiling helps to kill any unwanted bacteria and also concentrates the milk solids, leading to a thicker curd. Let the milk cool down completely after boiling.
Cool to Lukewarm: Allow the boiled milk to cool until it's lukewarm. This is crucial because the bacteria in the starter culture thrive at this temperature. You should be able to comfortably dip your finger into the milk for a few seconds without it feeling too hot.
Add the Starter Culture: Add a spoonful of previous curd (the starter) to the lukewarm milk. The starter contains live bacteria that will ferment the milk and turn it into curd. Gently stir the starter into the milk to distribute it evenly. The amount of starter depends on the temperature; use slightly more in colder weather.
Incubate: Pour the milk into a clean container (earthenware pots are ideal but any clean container will work). Cover it loosely and place it in a warm, undisturbed place for 6-8 hours, or until the curd has set. Avoid moving or disturbing the container during this time.
Refrigerate: Once the curd has set, refrigerate it for at least 2-3 hours before consuming. This will help to further thicken the curd and prevent it from becoming too sour.
If your curd is not setting properly, the temperature might be too low. Try wrapping the container in a warm towel or placing it near a warm appliance (like an oven that's been turned off) to provide a more consistent temperature for incubation.