The only 4 spaghetti recipes you'll ever need

In an exclusive extract from his new cookbook Made at Home, Giorgio Locatelli suggests four classic store-cupboard pasta dishes that will never fail

• Interview with Giorgio, plus more recipes from Made at Home

These spaghettis are not just convenient, quick and easy dishes; they can also be seductively brilliant, a perfect example of how a dish can be so much more than a sum of its parts.