Wash and core fresh tomatoes
Score an X on the bottom of each tomato
Blanch tomatoes in boiling water for 30 to 60 seconds
Transfer tomatoes to ice water
Peel off the skins
Remove seeds if desired
Chop the tomatoes
Heat olive oil in a pan
Sauté chopped onion until soft
Add minced garlic and cook briefly
Add chopped tomatoes to the pan
Season with salt and black pepper
Add basil, oregano, or other herbs
Simmer until thickened
Stir occasionally while simmering
Add a little sugar if the sauce is too acidic
Blend for a smoother sauce if desired
Taste and adjust seasoning
Use immediately or cool and store