While the starter is in development, toast the hazelnuts separately in a flat iron pan. They should become fragrant, a bit colored but not black. let cool down
When the starter is about ready, mix the dry flours, the hazelnuts and the salt
Add the water to the dried figs and let stand for 10 minutes
Add the water to the above mixture and thoroughly mix. make sure all flour gets wetted and let stand for 30-45 min at room temperature
Then mix the starter with the wetted, autolysed flour/seed mixture using a spatula or a fork. Do this in a wide bowl. Mix well. There is no kneading in making this bread, other than mixing and folding
During the next 1.5-4 h (depending mostly on your room temperature) let the mixture ferment on your counter at room temperature. Every 15-45 min (the 15 min in warmer kitchens and the 45 min in colder kitchens) make a full fold of the dough.
A full fold is done by using wet fingers and taking the dough on one (far) side (of the bowl), stretching it upwards and folding it towards you to the opposite side. Do this first north to south, then south to north (by first turning the bowl 180 degrees), then east to west and then west to east. This is one full fold.
When the dough has doubled in size, start shaping
We can do the shaping on the counter, dusted with bread flour. Fold it in the shape of the banneton you want to use
On the cloth lining of your banneton, spread some of the not toasted seeds
Take with your floured hands the shaped dough and place it with the folds up in your banneton
cover with a plastic bag or with plastic wrap and let it proof in the refrigerator for 6-15 h
When the proofing is done, pre-heat the oven to 480 F (250 C). if you have use a baking stone
After the proofing, place the dough on a baking tray covered with baking paper (I usually place baking paper on the bannetaon, then the baking tray upside down on that and then move banneton and and baking tray upside down. Then remove the banneton carefully, letting the cloth release the seed covered, proofed dough
Score the dough 1/2 inch deep with a very sharp, oiled knife in a quick movement along the dough
Reduce the oven temperature to 428 F (220 C), bring in some steam and immediately place the baking tray in the oven, on the hot stone if using. Bring in extra steam and do not use heat from above to let the oven spring do its work for 15 min. Thereafter bake with heat from above and from beneath for another 30-35 min. When you use the dough from the fridge directly into the oven, the oven spring may take a bit longer than when you use a proofed dough that was first adjusted to room temperature. If your oven has enough heating capacity, just bake the dough straight from the refrigerator, perhaps a few minutes longer