In a stand mixer (or large bowl if mixing by hand) add warm water, sugar, salt, olive oil and 3 1⁄2 cups of flour. Don’t add the full 4 cups yet - mix well. If the dough begins to pull away from the sides of the bowl, don’t add more flour. But if it’s still sticky and hard to work with, add more flour 1⁄4 cup at a time until 4 cups is reached.