Homemade Yogurt
To make 550ml (1 pint) Pour 550ml (1 pint) boiled water into a jug. Cool slightly then whisk in 150g or 8 heaped tablespoons of powdered milk. When warm stir 75ml (2 tablespoons) firm natural yogurt into the mixture. Make the yogurt in a wide necked vacum flask. Cover and leave the yogurt for at least six hours or overnight. Refrigerate well before using.