In a large bowl, whisk together flour, salt and instant yeast. Add the water. Using a spatula or wooden spoon, mix until the liquid is absorbed and ingredients form a sticky ball of dough.
Rub the surface of the dough lightly with olive oil. Cover bowl tightly with plastic wrap and place in fridge for at least 12 hours, or up to 3 days.
When dough is done rising, spray a 9x13 baking dish OR two 8 or 9 inch pie plates with non stick cooking spray.
If using two pie plates, pour 1 tablespoon of olive oil in center of each plate. If using one 9x13 dish, pour 2 tablespoons of olive oil in center of dish.
Using two forks, deflate the dough and pull away from sides of bowl, while rotating bowl. Forming a ball.
Split the dough ball in half using forks IF you're using two pie plates. Keep dough ball as one if using 9x13 dish.
Place dough into baking dish/dishes and coat dough balls well in olive oil. Let rest for 3-4 hours at room temperature, uncovered.
Once dough has risen, set rack in middle of oven. Preheat oven to 425°. If using rosemary or thyme, sprinkle it over dough.
Pour 1 tablespoon of olive oil each round of dough. Rub hands lightly with oil. Using all fingers, poke dough creating deep dimples. If need be, gently stretch the dough as you make the dimples to fill pan.
Sprinkle with flaky salt. Bake in oven for 25-30 minutes or until the top turns a deep golden brown.
Enjoy!