Sourdough Culture - cooking recipe

Ingredients

1 c. milk
1 c. flour

Preparation

Allow milk to stand in a warm place for 24 hours.
Using a wooden spoon, stir in flour.
Allow to stand in a warm place until it forms bubbles and becomes very sour.
When ready, place in a large, loosely covered bowl and place in refrigerator.
Never use metal bowls or utensils when working with sourdough.