Wash and chop the tomatoes, onion, and garlic.
Heat olive oil in a pot and sauté the garlic and onion.
Add the tomatoes and stir-fry together.
Add water and salt, then bring to a boil.
Once all the ingredients are cooked, blend until smooth with a hand blender.
Simmer once more over low heat.
Season to taste with pepper and herbs to finish.