Cacio e pepe [kah-choh ee PAY-pay] translates to “cheese and pepper” and refers to the Roman pasta dish featuring Pecorino Romano cheese and plenty of freshly cracked black pepper. This recipe reinterprets the classic flavor duo in the form of a creamy cauliflower gratin. If you like, add 1/4 cup sliced peppered salami during last 5 minutes of baking. After baking, top gratin with grissini (crisp Italian breadsticks).