Cut the peppers in half, length-ways, discard the stalks and seeds, then cut in thin slices and, finally, into small pieces. Soak them in cold water to make them more digestible.
Wash the capers under running water
Peel and finely slice the onion.
In a large saucepan, heat the oil, add the anchovies and, with the help of a fork, melt them in the oil.
Add the onion and cook on low heat for 5 minutes, then add the drained peppers, the chili pepper and the capers.
Cover and cook for about 20 minutes until tender, stirring occasionally.
After the time, put half the peppers in a blender, reduce them to a puree and pour it back into the pan.
Cut the cherry tomatoes and pour them into the sauce and mix everything together.
Cook for a further 10/15 minutes.
Meanwhile, bring to a boil a large saucepan of salted boiling water and cook the Spaghetti.
Drain the pasta “al dente”, pour it into the pan with the sauce, and add the roughly chopped basil leaves.
Mix everything together to allow the flavor to combine.
Your dish is ready!