100g Sourdough starter
100g Good quality drinking chocolate powder (I used Green and Blacks)
500g Shipton Mills Canadian Bread Flour
Mix all ingredients together using a knife then use a mixer with a dough hook for a couple of minutes until the ingerdients form a smoothish dough scraping any ingredients from the sides. Use a scraper to make the dough into a ball in the bottom of the bowl then cover with a tea towel. Leave for 1/2 hour then stretch and fold 4 times giving the bowl a 1/4 turn each time. Cover and leave for another 1/2 hour. Repeat this for 5/6 times. Turn the dough ball out onto a floured surface and shape into a nice ball and plop into a floured basket baneton. Put the basket into a large enough tupperwear container and put the lid on. Place in a fridge to slowly ferment (rise). I usually leave it over night but can be left to do it's stuff for 2 or 3 days.
I cook my bread inside a cast iron dutch oven lined with non stick parchment, this keeps the temperature and cooking even. Pre-heat your oven with your Dutch oven inside to 275ºc. When the oven is up to temperature take your dough out of the fridge, out of the basket baneton and plop it into the Dutch oven, score the top with a razor blade and put the lid on the Dutch oven and back into your oven. Turn the temperature down to 235ºc and bake for 30 minutes. Take the lid off and bake a further 10/15 minutes. Take out of the oven and cool. Eat!!