A Dutch oven mimics a professional bread oven by increasing radiating energy and humidity. To make no-knead Dutch oven bread, preheat the Dutch oven for 30 minutes in the oven and place the bread on enough parchment paper, so there's slight overhang (easier to remove afterward). Bake the bread with the lid on for 30 minutes, then remove the lid and bake for a further 10-25 minutes, until it's your desired level of brown.