In two large trays, arrange all the tomatoes, cut side up. Divide the garlic & herbs between them & sprinkle generously with olive oil.
Roast in the oven for around 2 hours- maybe up to 3. This will depend on how ripe or large the tomatoes are. You want them to be a little charred and very soft. The garlic should be soft & caramelised.
Once the tomatoes are cooled, put them in the blender or food processor. Squeeze out the garlic cloves and add them.
Blitz until pretty smooth.
Serve stirred through some hot pasta, with maybe a little extra olive oil & some fresh herbs to finish
Notes
This sauce is great used as a tomato base for pizza, to simmer vegan 'meat' balls in or smooshed into a sandwich with some roasted veggies.