In a large bowl, mix the flour, salt, and yeast together. Stir in the warm water until a shaggy dough forms.
Cover the bowl with plastic wrap or a clean towel and let it sit at room temperature for 12–18 hours.
Preheat your oven to 450°F (230°C). Place a Dutch oven with the lid on inside to heat up for 30 minutes.
While the Dutch oven heats, turn the dough onto a well-floured surface and shape it roughly into a ball. It’ll look messy, but that’s part of the charm.
Carefully place the dough into the hot Dutch oven. Cover and bake for 30 minutes.
Remove the lid and bake for another 10–15 minutes, until the crust is beautifully deep golden brown.
Cool on a wire rack before slicing (or tear into it early, I won't judge).