Mix water, sugar, yeast, and potato flakes. Let ferment on counter for two days. Then feed with starter feeder (below). If you get starter from someone else, you can omit this step.
Combine water, sugar, and potato flakes. Add to starter. Let stand on countertop 8-12 hours, until bubbly. Refrigerate 3 to 5 days, then make bread.
3After using 1 cup of the starter for dough, pour one cup back into container and refrigerate. Discard any other starter or give to friends. Store starter in refrigerator.
4When you are ready to make more bread or every 3 to 5 days add starter feeder mix again. Stir well and leave on the counter overnight or all day (about 12 hours).
5To Make Bread:
Add flour, salt, sugar, oil, and water to starter. Mix well. Knead on a floured surface for 5 to 10 minutes. Put dough into a greased bowl. Cover with a wet dish towel and let it rise in a warm place overnight or all day (about 12 hours).
Punch down. Knead on a floured surface to get any air bubbles out.
Spray 3 loaf pans with cooking spray and divide dough approximately equal into the 3 pans (shaping into loaf form). Let rise 6 to 8 hours, covered loosely.
Bake at 350 degrees F. for 25 to 30 minutes.
6Heat a cup of water in the microwave, then with the microwave off, put the dough in there with the steamy water. Works especially well in the winter when it might be hard to find a warm place for the dough to rise.