In a large saucepan, drizzle about 3 - 4 tbsp of olive oil.
Add the whole cherry tomatoes and garlic.
Simmer on low-medium heat for about 1 hour. The sauce is done when the liquid is gone and the sauce is the consistency of pasta sauce. If it's not done at this time, simmer it a little longer.
If you haven't removed the skins already, let the sauce cool a little, then use your hand to remove them from the sauce.
Now put the tomatoes into a blender (or use a hand blender) and puree the sauce until it is smooth and creamy.