Potato Flake Sourdough Bread. A potato flake sourdough starter is made with dried instant potato flakes instead of flour. 1/2 cup warm water (105 to 115 f) 1 cup warm water (105 to 115 f) 2/3 cup sugar.

Its submitted by meting out in the best field. The process of making a sourdough starter includes the breaking down of the starch in dried potato flakes. Potato sourdough starter produces a milder sourdough bread than the stronger rye or wheat starters.