Combine 3 1/2 cups flour, the yeast, and salt in a bowl of a stand mixer or large mixing bowl. Add 1 cup plus 2 tbsp. room-temperature water, the soaker, and 2 tbsp. oil, mixing on low speed with a dough hook or stirring by hand with a wooden spoon until well incorporated. The dough should be soft and tacky; adjust with flour or water as necessary.