When the tomatoes start to soften, after about 4-5 minutes, mash them with a fork.
Bring the sauce to a boil, then reduce the heat to low and let the sauce simmer for 20 minutes.
Mash the tomatoes again with a fork or potato masher.
Use an immersion blender to blend sauce ingredients. If you don’t have an immersion blender, let the sauce cool and then use a blender or food processor to make the sauce. Pulse until it gets smoother with some chunks. ENJOY!