Add the shallots, carrot, celery and courgette to a food processor and blitz until they are chopped into tiny pieces
Add a drizzle of olive oil to a large pan and heat until hot
Add the chopped vegetables to the pan and cook for 5-7 minutes until most water has evaporated
Add the crushed garlic and cook for 1 more minute
Add the tomatoes and stir everything together
Add a dash of water if the vegetables are sticking to the bottom
Cook the sauce with the lid on for 20-25 minutes until the vegetables are soft
Transfer the sauce to a blender and blend until smooth
Drain the pasta and reserve a few tablespoons of the cooking water
Add the sauce to the pasta together with the cooking water and mix well
Serve with the chopped basil
