Warm the milk until hand-hot. Blend the
milk powder with the yoghurt in a bowl. Gradually whisk in the milk.
Cover loosely with clingfilm (plastic wrap) and wrap in thick towels.
Place in a warm place such as the airing cupboard for 2—8 hours until
set. Alternatively, pour the milk and yoghurt mixture into warmed,
wide-necked vacuum flasks and screw on the lids. Leave undisturbed
until set. Store in airtight containers in the fridge. Serve plain,
with honey or fresh fruit.