1. I use a ceramic, non-stick frying pan and so avoid using oil to fry the onions and garlic. I use a little water to keep them from sticking.
2. This recipe makes a lot of sauce, maybe enough for 8 pizzas. The dough recipe I reference makes 2 pies so you’ll get about 4 uses out of the sauce (depending on how much you like). Freeze the leftover sauce in small amounts to thaw when needed.