1. Mix all the ingredients and let it sit at room temperature until it doubles in volume, and looks active and bubbly.
Sourdough starter is ready to use when it floats in water.
30 g sourdough starter
60 g water
30 g all-purpose flour
30 g cocoa
1. In a bowl, combine wet ingredients. Mix until well combined.
480 g black coffee (80% hydration)
6 g vanilla extract (1%)
150 g chocolate starter (25%)
2. Add dry ingredients to the wet mix and mix until well incorporated. Cover the bowl with plastic wrap or a tea towel. Let it rest for 30 minutes.
600 g bread flour
60 g cocoa (10%)
72 coconut sugar (12%)
12 g salt (2%)
3. Add the chocolate chips and during the next 2 hours, every 30 minutes stretch and fold* the dough, to make a total of 4 stretches and folds. (The chocolate chips will be integrated as the dough is folded.)
4. *Bulk Fermentation: After completing the last stretch and fold, cover the bowl, and leave it in a warm place until it doubles in size, it could go from 4 to 12 hours depending on the room temperature. For me, it took 10 hours at room temp 65°F/18°C.
5. Place the dough on a clean surface, and shape it into a boule. (Use a little flour if the dough sticks.)
6. Prepare banneton with flour or a cloth liner to prevent the dough from sticking.
7. Proofing*: Once the dough is shaped, place it in a banneton, cover it and let it proof for 2-4 hours at room temperature or overnight in the fridge. This time, I left the dough proof for 1 hour at room temp 70°F/21°C and 2 hours in the fridge.
8. Preheat the oven and the Dutch oven to 450°F / 230°C for at least 30 minutes.
9. Place the dough on a silicon mat/parchment paper. Score the top of the dough with a razor or a sharp knife. The scoring helps the bread to rise evenly and prevents it from cracking.
10. Bake the bread with the lid on for 35 minutes.
11. Remove the lid and bake for 15 more minutes.
12. Remove the bread from the oven and let it cool on a wire rack for at least 1 hour before slicing and serving.
Enjoy!