Remove the sauce from the fridge: Take the sauce out of the refrigerator and let it sit at room temperature for about 10-15 minutes.
Add the sauce: Pour the desired amount of sauce into the pot.
Heat the pot: Place the pot on the stove over low to medium heat.
Stir occasionally: Stir the sauce occasionally to ensure it heats evenly and doesn't stick to the bottom of the pot.
Bring to a simmer: Once the sauce is brought to a gentle simmer. A simmer is when small bubbles form along the edges of the pot but the sauce does not boil vigorously.
Simmer for a few minutes: Let the sauce simmer for a few minutes at low heat.
Serve: Once the sauce has reached a simmer and is heated through, it's ready to serve over your favorite pasta.