In a large mixing bowl, combine flour, salt, sugar, and yeast.
Gradually add warm water to the dry ingredients.
Mix until a shaggy dough forms.
Cover the bowl with plastic wrap and let it rest for 12-18 hours.
Flour a clean surface and turn the dough out onto it.
Shape the dough into a ball and let it rest for 30 minutes.
Preheat your oven to 450°F (232°C) and place a Dutch oven inside.
Remove the hot Dutch oven, place the dough inside, and cover.
Bake for 30 minutes, then remove the lid and bake for another 15 minutes.
Let cool before slicing.