Fill a roasting dish with cherry toms, or chop in chunks other toms, a good sprinkle of sea salt.. peel and leave whole about 10-12 cloves of garlic, peel and cut into chunks a med onion scatter on top, then add tons of shredded basil, a good drizzle of olive oil, and a nice big splurge of balsamic vinegar... mix it all in together and roast in a med hot oven till its all thick and gloopy... take your time dont burn it...
Blend with a hand blender, pour into hot jars, cover with a drop of olive oil and screw lids on tight.
Leave to cool and then label... in a cool cupboard mine keeps all winter...
Use a couple of tablespoons to toss spagetti in... just add Parmesan and fresh basil..... mmmmmmnnn
Or use whenever you would use shop bought puree... its so much more yummy..