Sourdough Starter - cooking recipe

Ingredients

1/2 pkg. dry yeast
2 Tbsp. sugar
2 c. plain flour
2 1/2 c. water

Preparation

Combine ingredients in a glass bowl.
Beat well.
Cover and let stand 2 days in warm place.
It must have air.
Do not refrigerate.
After 1 week you may give a cup to a friend.
To replenish as used add 1 cup water, 1 cup flour and 1 cup sugar.