In a large bowl, mix together flour, salt and yeastAdd water and using spatula, mix together until combinedCover with plastic foil and let it rise for 12-18 hoursAfter at least 12 hours, heat up the oven to 450FWhen the oven has reached this temperature, place covered empty dutch oven into the oven and let it heat for half an hourIn the meantime, pour the dough onto a surface covered with flourUsing a vegetable scooper, turn the dough few times and form a ballPlace parchment paper onto your surface and then place your dough ball on top, cover with plastic foil and let it rest until the pot is hotAfter the pot has been in the oven for half an hour, take it out and place the bread with parchment paper inside, cover with lid and bake for half an hourAfter half an hour, take off the lid and bake for another 15-20 minutesRemove from the oven and let it rest before cutting