Sourdough Bread - cooking recipe

Ingredients

1 envelope dry yeast
1 c. warm water
3/4 c. sugar
3 Tbsp. instant mashed potatoes

Preparation

Dissolve yeast in warm water and let stand 5 minutes.
Add sugar and mashed potatoes, let stand out all day.
Refrigerate from 3 to 5 days.
Take out of refrigerator and feed with the following: