Sourdough Bread Starter - cooking recipe

Ingredients

1 pkg. dry yeast
1/2 c. warm water
2 c. lukewarm water
1 c. bread flour
2 c. instant potatoes
1 tsp. salt
1/2 c. sugar

Preparation

Dissolve yeast in 1/2 cup warm water. Add remaining ingredients. Store at room temperature in a 1-gallon covered container in a warm, draft free place for 3 to 4 days, stirring 2 or 3 times a day. Cover during night; uncover during day. Then store in refrigerator for 3 to 5 days.