Stash this in the freezer for an evening when you want to pamper yourself. You can heat the sauce right from the freezer while you cook some rice.
Place sauce in a large microwave-safe bowl or 8-cup (2-L) casserole dish and cover. Heat on medium power until hot, from 15 to 20 minutes for cold sauce and 30 to 35 minutes for frozen sauce. Stir every 5 minutes.