1In a bowl, mix 1.5 cups of water with 0.5 teaspoon of yeast.
2Add 3 cups of flour and 1.5 teaspoons of salt.
3Mix everything with your hands for less than a minute.
4Cover the bowl and let it rest in a neutral place (oven with the oven off) for at least 12 hours, or up to 16 hours. If it is longer than 16 hours, refrigerate it.
5Preheat the oven to 450°F (232°C).
6Place the dough into a Dutch oven and cut some holes on top of it using scissors.