Preheat the oven to 450ºF.
Place a large skillet over medium heat with 2 turns of the pan of EVOO, about 2 tablespoons. Add the onion and garlic to the pan and gently cook, stirring occasionally, until the onions are soft and deep golden brown, about 25 minutes. Stir in the garlic the last 8-10 minutes of cooking time.
While the onions are cooking, stretch the pizza dough out to the size of your pan (you can use a baking sheet or round pizza pan, whatever you have). Transfer the dough onto the pan and bake until set and very light golden brown, about 15 minutes.