300g white bread flour
200g rye or wholewheat flour
1tsp instant yeast
8g salt
+- 350ml luke warm water
Mix dry ingredients and add water and mix to combine in a large bowl. Cover bowl with clingfilm
Let rise for 12 to 20 hours, knocking down at least 2 hours before you wish to bake and recover with the clingfilm.
Preheat cast iron pot in oven at 230 C for 30min
Bake in pot with lid on for 45 minutes at 230 C
Remove lid and bake for 5 minutes at 230 C
Let stand in pot for 10 minutes
Cool on a wire rack for 30 minutes before slicing.