Herman'S Sourdough Starter - cooking recipe

Ingredients

1 pkg. active dry yeast
4 c. warm water (105~ to 110~)
2 Tbsp. sugar
4 c. all-purpose flour
1 medium potato, peeled and quartered

Preparation

Dissolve yeast in water in large bowl.
Add sugar and flour; mix well.
Add potato.
Cover bowl with cheesecloth.
Let stand at room temperature 5 to 10 days until mixture has a fermented aroma. Stir 2 or 3 times a day.
To store, transfer starter to a jar. Cover with cheesecloth.
Refrigerate to use.
Bring desired amount to room temperature.
Replenish starter after each use by stirring 1/4 cup flour, 3/4 cup water and 1 teaspoon sugar.
Cover.
Let stand at room temperature for at least 1 day, then refrigerate.
If starter isn't used within 10 days, stir in 1 teaspoon sugar or honey.
Repeat every 10 days unless replenished.