To the bowl of a mixer add the water, yeast and sugar. Stir to help dissolve the yeast. Allow the yeast to activate for 10 minutes. When the yeast is foamy and creamy it is ready to use. Add 2 cups of bread flour to the liquid. Using a rubber spatula, stir to combine allowing the flour to absorb the liquid. Place the bowl on the mixer. Using the dough hook, mix on low speed adding 1 cup of flour at a time until fully incorporated. Add the salt and turn the mixer up to medium. Continue to knead for 10 minutes, or until the dough is elastic but still slightly tacky and soft. You can also do this part by hand on a lightly floured board.
Oil a clean large bowl and your hands. Form the dough into a ball and place in the bowl, coating it in the oil. Cover with a damp towel or plastic wrap and allow to proof in a warm place for 2 hours or until doubled in size.
Line a rimmed baking sheet with parchment paper and oil the paper lightly. Knock down the dough and fold it over on itself 1 or 2 times. Divide into 4 equal pieces and form each piece into a ball. Place the dough balls on the prepared tray and drizzle with more oil if needed. Cover with a damp towel or plastic wrap and allow to proof for another hour. The dough is now ready to use.