A few days ago you may have seen a picture of a boule bread that I prepared for our breakfast. Actually this bread itokyos one of the simplest bread to prepare.
Here is the recipe for a 20cm diameter bread: mix 250g of flour (T60), 125g of water, 12g of dry sourdough, 1g of yeast, 5g of salt. Mix all the ingredients together and malax until the dough is smooth and soft. Then keep under a humid cloth for 90 minutes. Then make a ball of the dough after flatening it and folding it. The folding marks on top. Wait an other 90 minutes. Pre-heat the oven at 230 degrees celsius. Return the dough (folding marks below) and incise the dough with the square pattern. Put in the oven, and bake for about 40 minutes. (If necessary you may need to add water to moist the air in the oven)