Activate Yeast: Add warm water and sugar to the bowl of a stand mixer and give a quick whisk to dissolve the sugar. Sprinkle the yeast on top and let sit to activate, about 5-10 minutes. The yeast will be activated when it starts to foam.
Create Dough: Measure out flour, add salt, and mix. Add half of the flour and with the dough hook attachment, mix on medium. Add the second half of the dough and continue to mix until a sticky dough is formed.
Slow Proof: Add 2 tablespoons to a very large bowl (that will fit in your fridge) and add dough to the bowl. Turn dough in oil. Cover and store in the fridge overnight or for at least 8 hrs.
Second Rise: Add 2 tablespoons of oil to a rimmed baking sheet. Once the dough has at least doubled in size, add dough to the baking sheet. It should be soft and pliable. Stretch to fill the baking sheet, or into desired shape. Gently cover with a clean linen kitchen towel. Add a little oil to the top of the dough if the towel rests right on the dough. Let rise for another 60-90 minutes.
Preheat Oven: Preheat Oven to 375 degrees F.
Dimple, Oil, and Salt: Once the dough has risen, add a little oil to your fingers, and using both hands, gently press your fingers into the top of the dough to dimple the dough in even rows down the length of the dough. Use a pastry brush to brush with final 2 tablespoons of oil and sprinkle with coarse salt.
Bake: Bake for 25-30 minutes, until golden brown.
Cool: Remove from oven and transfer to cooling rack. Enjoy warm!