Wash the tomatoes thoroughly and peel them.
Chop the onion and garlic.
Heat olive oil in a pot and sauté the onion and garlic.
Add the tomatoes and sauté a little more.
Pour in vegetable broth or water and bring to a boil.
Season with salt and pepper.
Blend all the ingredients until smooth.
Pour back into the pot and bring to a boil once more.