Spaghetti with a Savory Onion Sauce

Cooking is a little like alchemy. Ingredients that may not be very appealing in their raw state are transformed into something delectable. That is exactly what happens to the onions in this sauce. Even sweet onions are not something you would sit down to eat a plateful of raw, but after a relatively short cooking process, and with a few other ingredients, they become a rich, delicious sauce for pasta.