Cacio e pepe is what happens when a short ingredient list refuses to be easy.
At its core, the dish uses pasta, Pecorino Romano and black pepper. The sauce is created by combining finely grated cheese with starchy pasta water at the right temperature.
No cream is needed. No butter is required for the traditional version we use here. The challenge is turning cheese and water into a smooth emulsion instead of a bowl of expensive clumps.
Quick Recipe
Servings: 4
Prep time: 5 minutes
Cook time: 15 minutes
Difficulty: Medium
Ingredients
- 400 g spaghetti, tonnarelli or another long pasta
- 120 g finely grated Pecorino Romano
- 2 teaspoons black peppercorns, or to taste
- Salt for the pasta water
Method
1. Toast the pepper.
Crush the black pepper coarsely.
Place it in a large dry pan over medium heat for about a minute, just until fragrant.
Add a small ladle of pasta water and lower the heat.
2. Cook the pasta.
Boil the pasta in lightly salted water until very al dente.
Use slightly less water than usual if practical. Starchier pasta water makes the final emulsion easier.
Reserve plenty of cooking water.
3. Make the Pecorino mixture.
Place the finely grated Pecorino Romano in a bowl.
Add a little warm pasta water gradually and stir until you have a thick paste.
The water should be warm rather than violently boiling. Excessive heat encourages the cheese proteins to seize.
4. Finish the pasta.
Transfer the very al dente pasta to the pan with the pepper.
Add a little pasta water and continue cooking, tossing until the pasta reaches the texture you want.
Turn off the heat.
Allow the pan to cool very briefly, then add the Pecorino mixture.
Toss vigorously, adding tiny amounts of pasta water until the cheese becomes a smooth, glossy sauce.
5. Serve.
Plate immediately and finish with more black pepper if you like.
Why Cacio E Pepe Clumps
Pecorino does not respond well to uncontrolled heat.
If you dump cheese directly into a pan that is still fiercely hot, the proteins can tighten and separate. That gives you stringy or grainy lumps instead of a sauce.
Finely grated cheese, starchy water and lower heat are your allies.
Common Mistakes
Using water that is too hot for the cheese.: Adding all the pasta water at once.
Using coarsely grated cheese that melts unevenly.
Salting the pasta water heavily.
Trying to rescue the dish by adding cream after the cheese clumps.
Spaghetti Or Tonnarelli?
Spaghetti is deeply associated with cacio e pepe and appears in traditional Roman recipes.
Tonnarelli are also extremely popular in Rome and their rougher, thicker shape holds a creamy cheese sauce beautifully.
There is no need to turn the pasta shape into a religious conflict. Choose a good one and focus on the emulsion.
Why Pecorino Romano?
Pecorino Romano is salty, sharp and made from sheep’s milk. Its flavour is central to the dish.
A milder hard cheese can still make pleasant pasta, but it changes the character substantially.
Italy By Taste Tip
Practice with a smaller portion first. Cacio e pepe is easier to understand when you can see exactly how the cheese reacts to temperature and water.