Boil the pasta following the instructions on the packet.
2.
Mix the pureed fresh tomato, cashew nuts and basil leaves in a bowl and add salt and pepper to taste (you can also add a pinch of sugar to cut the acidity of the tomatoes if necessary).
3.
Warm the extra-virgin olive oil in a saucepan. Add the tomato mixture and cook over a low heat for 15 minutes.
4.
Mix the sauce with the pasta and top off with a sprinkling of Parmesan cheese and a couple of basil leaves for a dash of color.