Meanwhile you can make the pomodoro sauce.
Heat the olive oil and throw in the garlic cloves and the basil - gently allow them to infuse the oil over a couple of minutes.
Once fragrant, remove the garlic and discard (you can also discard the basil, but I often keep it in), then add the San Marzano tomatoes, crushing them in with your hands - being careful as they’ll splutter aggressively once they make contact with the hot oil. Fill one of the cans with water and add this to the pot. Reduce to a gentle simmer and cover partially.
Allow this to cook gently over the course of about 40 minutes, until the tomatoes have fallen in on themselves. You can add salt to taste here, and check whether you feel the need to add some sugar - I usually sprinkle in about 1/2 tbsp if my tomatoes are tasting a little tart.
While that’s bubbling away, bring the meat mixture out of the fridge and use a 1/2 tbsp measure to portion out and roll your meatballs, placing each one on a baking tray.
Bake in a very hot oven for 4-5 minutes until the meatballs are browned - I like to go as hot as 240c fan-forced with the grill setting.
Remove from the oven and drop the meatballs into your sauce, and allow this to bubble away over a gentle heat for another 10-20 minutes. If the tomato sauce seems to be drying out at all, you can add a splash of water to reinvigorate. You want the sauce to reduce, but still have some movement and liquidity to it.
Serve with your favourite pasta, and a smattering of grated parmigiano reggiano.