Cover the pot, allow the pot to come to a simmer, then reduce the heat to low, and let simmer for 15 minutes minimum, or up to 30 minutes, I often let it simmer as I prepare my pizza dough.
Notes
Can Pizza Sauce be Frozen?
Yes! If this batch is more sauce than you need to make your pizza for one meal, go ahead and freeze the remainder. I suggest using a quart-sized freezer bag. To reheat, just tear away the freezer bag and empty the frozen sauce into a small sauce pot. Reheat over low, stirring often, until it is heated through.