You can either serve the flavorful sauce over the bed of spaghetti or mix it in well.
In a skillet, heat oil. Add garlic and anchovies, and cook over low heat until anchovies dissolve. Add olives, capers & pepperonccini and sauté for a few more minutes. Add a splash of dry white wine. Chop tomatoes, add the tomatoes and spices to skillet, and cook for 5 minutes. Cook spaghetti according to package directions and drain. Mix in sauce or serve on top. Sprinkle with chopped parsley and serve immediately.