Preheat a dutch oven in the oven at 500 degrees for at least 30 minutes.
Right before you want to bake, remove one basket of dough from the fridge.
Flip the dough over onto lightly floured parchment paper (so now the bottom is the top)
Lightly dust the top with flour.
Use a razor to score your dough. Hold lame or razor at 30-degree angle to the dough surface and cut about 1/2 inch deep into the dough using swift, confident motions.
Use two hands to lift your parchment paper that the dough rests on, and put it in your preheated dutch oven.
Bake with the dutch oven lid on at 500 degrees for 20 minutes.
Drop the heat to 475 degrees and bake with dutch oven lid off for 20 minutes (or until a nice brown crust has formed overtop).
Remove from oven and let it rest for an hour (this is the worst part, I know!).
Repeat with second loaf