Tonnarelli
Identify thick square Roman tonnarelli, learn how the chitarra creates its rough edges and match it with cacio e pepe.
- Format
- Long thick strands with a clearly square rather than round cross-section.
- Surface and bite
- Rough-faced, dense and springy, especially when cut from fresh egg dough.
How to recognise tonnarelli.
Tonnarelli is a long, thick strand with four flat faces and a square cross-section. Clean-cut ends make the difference from round spaghetti obvious.
It is commonly cut from a relatively thick fresh sheet using a chitarra-like string frame or a square cutter; formulas may include egg depending on local practice.
Tonnarelli is strongly associated with Lazio and Roman cooking. Related square strands made on a chitarra appear in central Italian traditions.
Rough-faced, dense and springy, especially when cut from fresh egg dough.
Separate the square strands before boiling and start tasting early when fresh. Finish in sauce without overworking them.
Why the geometry matters.
Rough square faces give Pecorino emulsions such as cacio e pepe ample contact area, while the dense centre stays springy during pan finishing.
- Cacio e pepe
- Amatriciana
- Mushroom and guanciale sauces
Do not confuse it with…
Tonnarelli vs Spaghetti
Spaghetti is round and generally slimmer; tonnarelli has four faces and a heavier bite.
See the spaghetti guide →Tonnarelli vs Pici
Pici is hand-rolled, roundish and irregular rather than square-cut.
See the pici guide →Famous dishes
- Cacio e Pepe
From flour to finished pasta.
Use the egg-dough or semolina-and-water method, then follow the rolling, cutting and shaping guidance.