Set oven to pre-heat at 240 °C, and pre-heat dutch oven at the same time with lid on.
When oven is at temperature, turn banneton upside down onto parchment paper (or silicone bread sling). Score the dough as desired, but at least one long cut.
Take the dutch oven out of the oven, carefully lower bread inside.
Bake for 25 minutes covered at 220 °C (or 30 minutes for large loaf), then take lid off and bake for a further 30 minutes.
If it doesn't sound hollow when tapped on the bottom, place the bread on a wire rack and bake for a further 3-5 minutes.
Let the loaf rest for an hour before eating.