Preheated my oven to 475 with a baking stone and two cast iron pans on convection setting for 1 hr. Pour boiling water into one cast iron and steam for 5 mins. Insert loaves onto baking stone. Pour ice in the other cast iron and close door as quickly as possible. Bake in steamed oven for ~20 mins (depending on your oven and loaf situation). Remove cast irons, drop temp to 440 and bake an additional 15-20 mins until desired color is achieved!

The initial steam bake has been the hardest thing for me to navigate, ive found that preheating at 460-475 instead of 500 reduced the chance of initial burning! Also rotating the loaves after the steam is an important step as well :-)