Cook your spaghetti according to on pack instructions 

Fry the chopped garlic in the olive oil.

After a couple of minutes add the halved cherry tomatoes and continue cooking until the tomatoes begin to soften, season well.

Add chilli oil or dried chilli (anything works) and continue to cook.

At this point add 4 Tablespoons of the pasta boiling water and a squeeze of tomato purée, cook for another few minutes, have a taste, sometimes I add a pinch of sugar if tomatoes not sweet enough

Stir in some torn basil leaves

Add the spaghetti mix well and serve with Parmesan… deliciously simple