Heat the oil in a pan over low heat. Add the peeled garlic and finely chopped pepper and cook for 2 minutes. Meanwhile, cook the pasta in a large pot of salted boiling water for the time indicated on the package.
Drain the pasta, dress it with the sauce prepared as above and garnish with the grated bottarga. Serve immediately.
Note: Bottarga, which is the dried egg sac of tuna, mullet and several other species of fish, is considered the "poor man's caviar" and in Italy is produced primarily in Tuscany, Sardinia and Sicily. It is sold whole or in powdered form.