Place all of the ingredients except for the butter into a mixing bowl. Use a spatula to mix the dough until it comes together into a mound. You can continue using the spatula, or switch to your hands to continue kneading the dough. Use extra olive oil or cooking spray to prevent the dough from sticking to your hands.
Alternatively, place all of the ingredients except for the butter into a stand mixer with a hook attachment or into a bread machine set on the “dough” setting. When using a stand mixer, knead the dough until it becomes stretchy and peels easily from the sides of the bowl.