I made this bread twice in the last week. I'm not a baker. In my first attempt I made two mistakes. I used rapid rise yeast, which I just added dry, and I was so caught up in following the recipe, I used only 1 3/8 cups of water. The dough was very dry , I had a quarter of a cup of unincorportated flour left in my bowl as well as many small hard chunks of flour and water paste. The dough was stringy to be sure I continued on. I left it to rise for the full 18 hours. I left it in a bowl , but it didn't look like it had doubled to me. The dough didn't seem to be all bubbly sponge-looking either. Not having much to lose I carried on. Turned it out, let is rest and baked it in a 450 oven using my Scan Pan dutch oven and a lid from a different pan. After 30 mins I removed the lid and let it back for another 15. The bread looked quite good and made a wonderful crackling sound. It was a very thick crispy crust bread, with a dense crumb. It was pretty good actually, and only one small dough nugget was found inside the loaf. I only mention this if your dough is too wet I would just add more flour and carry on. The second loaf I made I followed the instructions as printed , this time using SAP instant yeast and I did use the full 1 5/8 cups of water. I used Dakota Maid all purpose flour which has some malt barley flour in it for both loaves. This time the bread was perfect. Absolutely perfect. My loaf came out to about 9" in diameter.
Does anyone have suggestions for modifying this recipe for use with a sourdough starter?