Authentic Spaghetti Carbonara Recipe

Name: Spaghetti Carbonara
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Yield: 2 servings
Cuisine: Italian
Ingredients: 200 g Spaghetti; 150 g Pancetta (or guanciale if available), cubed; 3 Medium Egg Yolks; 1 Whole Egg; 50 g Pecorino Romano, finely grated, plus extra to serve (Parmesan works as a substitute but Pecorino is traditional); 1 tsp Black Pepper, freshly cracked, plus extra to serve; Salt, for the pasta water

Spaghetti carbonara is one of the great classics of Roman cuisine - a deceptively simple pasta dish of silky, egg-enriched sauce, salty guanciale or pancetta, and a generous amount of Pecorino Romano, finished with plenty of black pepper. No cream. No onion. No garlic. Just four core ingredients working in perfect harmony to create something far greater than the sum of their parts.

The sauce is made entirely from eggs, egg yolks, and cheese, emulsified with a splash of starchy pasta water into a glossy, coating sauce that clings to every strand of spaghetti. Getting it right requires a little technique - the heat must be low enough not to scramble the eggs, but high enough to cook them through - but once you've cracked it, it's one of the most satisfying things you can put on the table in under 30 minutes.

This recipe uses pancetta in place of the traditional guanciale (cured pig's cheek), which can be difficult to source in UK supermarkets. Pancetta is an excellent substitute, widely available at Tesco, Sainsbury's, and Waitrose. Authentic, fast, and utterly delicious - this is the carbonara worth knowing.

Ingredients

200 g Spaghetti
150 g Pancetta (or guanciale if available) , cubed
3 Medium Egg Yolks
1 Whole Egg
50 g Pecorino Romano , finely grated, plus extra to serve (Parmesan works as a substitute but Pecorino is traditional)
1 tsp Black Pepper, freshly cracked , plus extra to serve
Salt , for the pasta water

Method

Bring a large pan of well-salted water to the boil. Add the spaghetti and cook for 1 min less than the packet instructions - it will finish cooking in the sauce. Before draining, reserve a large mugful (at least 200ml) of the starchy pasta water. This is essential - don't forget it.

Tip: The pasta water is the key to a silky carbonara sauce. The starch it contains helps emulsify the eggs and cheese into a smooth coating rather than a clumpy mess. Use well-salted water - it should taste like mild seawater.
While the pasta cooks, place the pancetta in a cold frying pan and set over a medium heat. Cook for 8–10 mins, stirring occasionally, until the fat has rendered and the pancetta is crisp and golden. Remove from the heat and leave the pan to cool for a couple of minutes - this cooling step is critical to avoid scrambling the eggs in the next stage.
In a bowl, whisk together the egg yolks, whole egg, and grated Pecorino until smooth. Season with the cracked black pepper. Do not add salt - the pancetta and cheese provide plenty.
Drain the spaghetti and add it directly to the pancetta pan (off the heat). Toss well so the pasta is coated in the rendered fat. Add a splash of the reserved pasta water (about 3–4 tbsp) and toss again.
Pour the egg and cheese mixture over the pasta, tossing continuously and quickly with tongs or two forks. Add more pasta water a splash at a time, continuing to toss, until the sauce is glossy, silky, and coats every strand - you may need 6–8 tbsp in total. The residual heat of the pan and pasta cooks the eggs gently without scrambling them.

Tip: Speed and movement are everything at this stage. Keep tossing constantly and add pasta water gradually - the sauce comes together quickly once it starts to emulsify. If it looks too thick, add a splash more water. If it looks too wet, keep tossing - the sauce will tighten as it cools slightly.
Serve immediately in warmed bowls, finished with extra grated Pecorino and a generous crack of black pepper.

Alternatives & Variations

Use smoked bacon lardons instead of pancetta - lower in fat, though the flavour is less rich and the authenticity takes a hit
Swap half the spaghetti for courgetti (spiralised courgette) - reduces carbs and calories significantly; add the courgetti raw to the hot pan at the end so it just warms through without going soggy
Reduce to 2 egg yolks and 1 whole egg - the sauce will be slightly less rich but still works well and cuts the fat content a little

Swap the spaghetti for a good quality gluten free spaghetti or tagliatelle - Rummo and Barilla both produce gluten free pasta ranges available at major UK supermarkets, and both hold up well in this dish. All other ingredients are naturally gluten free. Check your pancetta packaging if you have a severe intolerance.

FAQs

Just 30 mins - 10 mins of prep and 20 mins of cooking. It's one of the fastest proper pasta dishes you can make, with very little hands-on effort until the final emulsification stage, which takes only a minute or two.

Rated Intermediate. The ingredients are simple but the technique requires attention - getting the egg sauce silky rather than scrambled is the key challenge. The most important things are letting the pan cool slightly before adding the eggs and keeping the pasta moving constantly. Once you've done it once, it becomes second nature.

Authentic Roman carbonara contains no cream - the silky sauce comes entirely from eggs, egg yolks, cheese, and starchy pasta water, emulsified together over gentle heat. Cream is a common addition in non-Italian adaptations, but it changes the texture, dilutes the flavour, and frankly isn't needed. Done properly, the egg and cheese sauce is richer and more satisfying than any cream version.

Freezing is not recommended. The egg-based sauce doesn't survive freezing well - it separates and becomes grainy on reheating. Carbonara is best made fresh and eaten immediately. It also doesn't reheat particularly well as a leftover, so make only what you need.

Not really — carbonara is one of those dishes that must be made and served immediately. The sauce firms up as it cools and doesn't reheat without scrambling. You can prep the pancetta and the egg and cheese mixture in advance, then bring everything together in the final 5 mins before serving.

In Rome, carbonara is typically served as a standalone pasta course. A simple rocket salad dressed with lemon and olive oil is the ideal accompaniment if you want something alongside it - the bitterness and acidity cut through the richness perfectly. Garlic bread works well for a more casual meal. Avoid anything heavy or creamy alongside it.

Yes - smoked streaky bacon is the most accessible substitute and works well. It gives a slightly smokier, less delicate flavour than pancetta but produces a very good carbonara. Avoid back bacon as it doesn't render enough fat and won't crisp up the same way.