Warm milk till it is comfortable temperature (45-50 degrees C or 100 degrees F). Dissolve 1 teaspoon leftover yogurt as starter in 500 ml. (2 cups) milk. Leave in warm place overnight. In the morning, it will be ready. Store in the refrigerator. For thick yogurt, add a teaspoon of milk powder.
By paramjeet from Mohali
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Homemade Yogurt Recipes