Ingredient glossary

Few ingredients, so each one matters. Here's what to buy, what to swap and what never to swap.

Cured meat

Guanciale

Cured pork jowl. It is rich and fatty, with a deep, peppery flavor.

Versus: Pancetta is leaner and milder, since it is pork belly. Bacon is usually smoked, which changes the dish.

πŸ›’ Look for a firm piece with a thick pepper or herb crust and plenty of white fat.

Used in: The house carbonara, Spaghetti all'Amatriciana

Pancetta

Salt-cured pork belly, not smoked. It is sold in slabs or small cubes.

Versus: It is a fair stand-in for guanciale, but less fatty and less rich. Bacon adds smoke, so it tastes different.

πŸ›’ Choose unsmoked pancetta with even stripes of meat and fat. Pancetta tesa (flat) is best for cubing.

Used in: The house carbonara, Spaghetti all'Amatriciana

Cheese

Pecorino Romano

A hard, salty sheep's milk cheese from Lazio and Sardinia. It is sharp and tangy.

Versus: Parmigiano is milder, nuttier and sweeter. Pecorino is saltier, so you need less salt in the pot.

πŸ›’ Buy a wedge and grate it fresh. Check the rind for the name Pecorino Romano DOP.

Used in: The house carbonara, Cacio e pepe, Spaghetti all'Amatriciana

Parmigiano Reggiano

A hard cow's milk cheese aged at least 12 months. It tastes nutty and savory.

Versus: Pecorino Romano is sharper and saltier. Generic 'parmesan' is often less complex.

πŸ›’ Look for the dotted rind stamp. Aged 24 months gives the most flavor.

Used in: The house carbonara

Fish & seafood

Anchovies

Small cured fish that melt into sauce. They add savory depth, not a fishy taste.

Versus: Salt-packed ones are meatier and more flavorful, but need rinsing and boning. Oil-packed ones are ready to use and milder.

πŸ›’ Pick plump fillets with a clean smell. Oil-packed in a glass jar is the easy choice.

Used in: Spaghetti alla puttanesca, Aglio, olio e peperoncino

Clams (vongole veraci)

Small, sweet Mediterranean clams with a mottled shell. They open in the pan and release a briny juice.

Versus: Manila clams are a close, widely sold match. Canned clams work in a pinch but are chewier.

πŸ›’ Buy live clams with tightly closed shells. Discard any that stay open or smell off.

Used in: Spaghetti alle vongole

Pantry

Capers

Pickled flower buds of the caper bush. They taste salty, sharp and floral.

Versus: Salted capers have a firmer bite and truer flavor, but need rinsing and soaking. Brined ones are softer and tangier, and ready to use.

πŸ›’ Choose small capers. Rinse them well before cooking.

Used in: Spaghetti alla puttanesca

Gaeta olives (black olives)

Small, wrinkly black olives from Gaeta in Lazio. They are mild, fruity and a little bitter.

Versus: Canned black olives are bland and rubbery. Kalamata is a good swap, though it is stronger and tangier.

πŸ›’ Buy whole, unpitted olives and pit them yourself for better taste.

Used in: Spaghetti alla puttanesca

Black peppercorns

Dried berries of the pepper vine. Freshly cracked, they taste hot, piney and citrusy.

Versus: Pre-ground pepper is dull and dusty. Toast whole peppercorns and crack them for the best flavor.

πŸ›’ Buy whole peppercorns that smell strong when you rub one.

Used in: The house carbonara, Cacio e pepe

Dry white wine

A non-sweet white wine used to deglaze the pan. It adds acidity and depth.

Versus: Sweet wine makes the sauce cloying. A splash of vermouth or lemon juice and water can fill in.

πŸ›’ Use a crisp wine you would drink, such as Pinot Grigio or Vermentino.

Used in: Spaghetti alle vongole

Produce

San Marzano tomatoes

A long, thin plum tomato grown near Naples. It is sweet, low in acid and has few seeds.

Versus: Regular canned plum tomatoes are more acidic and watery. Add a pinch of sugar if they taste sharp.

πŸ›’ Look for the DOP seal on whole peeled tins.

Used in: Spaghetti all'Amatriciana, Spaghetti al pomodoro, Spaghetti alla puttanesca

Basil

A soft, sweet herb with a peppery, minty scent. It is added at the end.

Versus: Dried basil has little flavor. If you can't find fresh, leave it out.

πŸ›’ Look for bright green leaves with no black spots. Tear them by hand.

Used in: Spaghetti al pomodoro

Pasta