I use this sauce for lasagne, manicotti, eggplant parmesan, and plain ole spaghetti and meatballs. In other words, it lends itself to all those dishes yet stands up well on its own. Recipe can easily be halved (which is usually enough for one large pan of the above) but also freezes nicely. Can be pureed with a hand blender if you so choose, but I like it a bit chunky. Peperoncino piccante concentrate is a blend of hot red peppers and olive oil, available at Italian groceries. If not locally available, substitute 1 tsp red pepper flakes. With these amounts, this is a rather spicy sauce . . . so adjust as necessary to your tastes !