Sourdough Starter - cooking recipe

Ingredients

1 pkg. active dry yeast
1 3/4 c. all-purpose flour
1 Tbsp. salt
1 Tbsp. sugar
2 1/2 c. warm water

Preparation

Stir warm water with other ingredients, blending well with whisk or wooden spoon.
Cover mixture loosely with plastic wrap and let stand at room temperature for 5 days, stirring at least once a day.
After 5 days, the starter may be refrigerated in a covered container for a week or two.
Be sure to open container regularly to release built up gases.
Use the starter in any sourdough recipe.
After using, it may be replenished by adding 3/4 cup plain flour, 1 1/2 teaspoons of sugar and 1 1/2 cups warm water.
Let stand for 2 to 3 days at room temperature before using.
Replenish every couple of weeks and stored in the refrigerator.
The starter will last almost indefinitely.