I used the recipe on the King Arthur Flour site and the bread turned out nicely. I varied a bit from the recipe in that I used a 5 qt dutch oven. I put the dough into the cold dutch oven, covered it and placed it into a pre-heated oven at 450F for 5 minutes and then turned the heat down to 350F and baked for 45 minutes.
The dough that I made was shaped into a ball and slightly flattened. It looked small in the dutch oven. Should I have flattened it down to a thick disk? Should I have made more dough for the dutch oven or perhaps used a smaller dutch oven?