Spaghetti with Oven-Dried Tomatoes and Bottarga

Bottarga is fish roe, usually from tuna, that is pressed and salted. It is commonly found in Italian markets and specialty food stores. In Italy, it has been called “Sicilian caviar,” since Sicily is traditionally where the tuna is caught. The roe can be eaten as is—on toasts or as shaved slices mixed with very thinly sliced celery, olive oil, and pepper—or shaved over other foods. It is usually accompanied in some way by garlic and parsley, and sometimes peperoncino, dried hot red p