Heat the oil over medium-low heat in a large sauté pan. When it’s hot, add the onions and a small pinch of salt. Stir every few minutes until the onions are translucent, about 8-10 minutes. Be careful – if your pan is too hot they may burn! If this happens, add a little liquid to the bottom of the pan (about 2 Tbsp) and stir until it evaporates.