Mix bread flour, spelt flour, and cocoa powder in a bowl.
Add all but 50 grams of the water to the flour mixture.
Blend everything so that all flour is hydrated. The mixture can be a bit stiff, so knead it lightly if needed.
Cover with a wet dishcloth until needed.
Ready the raisins - in the morning
Add the raisins to a small bowl.
Pour over Cointreau and leave until you need it.
Remove skins and toast hazelnuts - in the morning
Turn the oven on to 180°C/400°F/Gas Mark 4.
Add 3 tbsp of baking soda to 1 liter of water and bring it to a boil.
Turn the heat down to a simmer.
Add the hazelnuts and simmer for 3 minutes. Pour off the (black) water into a strainer.
Remove all the skins by pressing each hazelnut so the skin pops off.
Once you've removed all the skins, dry off the nuts in a clean dishtowel.
Add to a small pan and toast in the oven for 15 minutes.
Remove the hazelnuts from the oven and add them to a small bowl to cool. Once cooled, chop them very coarsely.
Mix the dough - around noon
Add salt, honey, brown sugar, and 50 grams of water. Combine it lightly by folding it a bit. Then add the starter and incorporate everything.
It may take a while because the dough is stiff, so take your time and ensure everything is incorporated.
Leave the dough to rest for 30 minutes.
Mix in the add-ins - about 12:30/12.30 pm
Wet your hand and lose the dough from the bowl.
Drizzle about half of the hazelnuts on top of the dough and do a couple of stretch and folds to incorporate.
Pour the rest of the hazelnuts on top, stretch, and fold a couple of times again.
Chop the chocolate coarsely and spread it over the dough. Stretch and fold a couple of times.
Repeat with the raisins, making sure to discard any left-over Cointreau.
Leave the dough to rest for 30 minutes.
Bulk fermentation - about 13:00/1.00 pm
We will be doing three sets of stretch and folds every 30 minutes.
First, wet your hands and loosen the dough from the sides of the bowl.
Then grab the back of the dough with one hand. Stretch the dough as far as it goes without breaking, and then fold it down.
Turn the bowl a quarter and repeat thrice until you have stretched and folded the dough from all four sides.
Leave the dough to rest covered until the next 30 minutes are up.
After the three sets of stretch and folds, you can try a windowpane test to see how strong the gluten network is, but it can be tricky because the add-ins might cut the pane. The autolyse should have made sure that gluten is adequately developed.
Leave the dough to rest until it's grown by 25-50% and looks puffier. It usually takes 2½ hours at 21°C/70°F with a good and active starter, but judge your dough.
Divide and preshape - about 15:30/3.30 pm
When the dough has finished bulk, it's time to divide and pre-shape it.
Pour the dough onto your unfloured kitchen counter.
Using your bench scraper, cut the dough into two equally sized pieces.
Put one part of the dough to the side.
Grab the other part, stretch each of the four sides out, and fold it over the dough—like an envelope.
Grab the dough with your bench scraper and flip it upside down so the part facing the table is now upwards.
Put your bench scraper behind the dough and pull it forward over the table so that the front of the dough is pulled down underneath the dough ball. You can use your other hand to guide the dough.
When the dough ball can't get any further, put the bench scraper in front of it and push it forward while turning it around so that you end up behind the ball again.
Keep going until the dough ball has a taut surface.
Repeat with the other piece of dough and leave them to rest on the counter for 20 minutes.
Shape the dough - about 16:00/4.00 pm
Start by flouring your bannetons liberally with rice flour.
Once the 20 minutes are up, you should shape the dough.
Follow the instructions for the preshape, and once the dough is shaped. Flip it upside down into the floured banneton.
Put the banneton in a plastic bag and place it in the fridge overnight.
Continue with the other dough ball.
Bake the bread - next morning
If you have a baking steel or a pizza stone, place it on a rack in the lower middle of the oven. Place a dutch oven or combo cooker on top.
Preheat the oven to 260°C/500°F/Gas Mark 10 (or Gas Mark 9 if unavailable).
Preheat for a good hour to ensure everything is hot for the bake.
Take a banneton with a boule from the fridge.
Flip it out onto a peel covered with parchment paper.
Add extra rice flour to that the surface is completely covered.
Score the bread. I like to do a big cross on this bread because of the way it opens up but pick your favorite. It doesn't affect the taste of the bread.
Open the oven. Put the bread in the dutch oven by pulling or carrying the bread over. Put on the lid and close the oven.
Bake for 20 minutes covered.
Turn down the oven to 230°C/450°F/Gas Mark 8.
Open the oven and remove the top of the dutch oven. If you have room in the oven, you can keep it there, but I usually place it on my stove until I need it again.
Close the door and bake for another 25-30 minutes. Don't worry if the bread gets dark around the edges. It's a good sign.
When the bread is done, take it out and place it on a wire rack to cool.
Continue with the other bread by reheating to 260°C/500°F/Gas Mark 10.
Put the top of the dutch oven top back in the oven; bake the other bread when the oven is hot.
Let the bread cool completely before you cut into them.