Place the extra-virgin olive oil and chopped onion in a large pot. Let it soften for around 2 minutes.
Remove the ‘Nduja from its casing and cut it into small pieces. Add it to the onion. Let the sausage melt in the pot, stirring occasionally.
Add the tomato sauce. Stir well and add half a glass of cold water. Let it cook on low heat for around 20 minutes and add a few leaves of fresh basil.
While the sauce is cooking, place a pot with water and salt on the stove. When it comes to a boil, add the pasta and let it cook. Once cooked, drain it and mix it with the sauce.
