Spaghetti pomodoro

Steps

1. In a pot melt the olive oil and butter, then add the onion, garlic and chilli flakes.
2. Cook until the onion is softened.
3. Pour in the tomatoes and their juice, crushing them with your wooden spoon.
4. Sprinkle in the sugar, salt and the lemon. Give it a stir.
5. Let it simmer on low for 10-20 minutes until reduced and thick.
6. Meanwhile, bring a large pot of water to the boil, salt it well until it's salty like the sea.
7. Cook your spaghetti until al dente, reserving half a cup of the water when draining it.
8. Take tomatoes off the heat and blitz with a hand blender until smooth.
9. Add pasta and pasta water to the sauce. Stir until the sauce coats the pasta.
10. Add basil and parmesan and toss until cheese is melted.