Sourdough Starter - cooking recipe

Ingredients

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

Preparation

Mix yeast with 1/2 cup lukewarm water.
Mix sugar with 2 cups water; add flour.
Add yeast to mixture.
Let stand in glass jar covered with a cloth for 5 days.
Then put in refrigerator for 3 to 5 days.
Take out and feed.