Thermos Yoghurt - cooking recipe

Ingredients

1 pint milk
1 tablespoon natural yoghurt

Preparation

Preheat a heatproof dish and a well fitting lid, or thermos flask with boiling water.
Heat milk to blood heat 37C/ 98F.
Put yoghurt into a basin, add a little of the warm milk, stir well and then pour the yoghurt into the pan of milk.
Stir well, then pour into the warmed dish and cover with the lid.
Cover the container with a thick cloth and leave in a warm place, such as an airing cupboard, overnight, until the milk clots.
If a thermos flask is used you do not need a warm place!