Heat the milk
Pour the milk into a pot and heat it until it reaches about 90°C, just before boiling.
If you don’t have a thermometer: when it starts to inflate and foam, it’s ready.
This step kills unwanted germs and prepares the milk for proper fermentation.
Let the temperature drop
Allow the milk to cool to about 45°C.
Without a thermometer: you can dip your clean finger in and hold for 10 seconds without burning.
Add the yogurt culture
Take 3–4 tablespoons of the warm milk and mix it with the yogurt until completely smooth.
Pour this mixture back into the pot with the warm milk and stir gently.
Fermentation
Transfer the mixture into a clay or glass container.
Cover with a clean towel and wrap with a blanket to keep the temperature stable.
Leave undisturbed for 6–8 hours.
The longer it sits, the thicker and tangier it becomes.
Refrigeration
When the yogurt has set, place it in the refrigerator for at least 3 hours before eating.
Ready!