Recco and Camogli, Liguria — ancient hand-pasta tradition; the three-component one-pot preparation is documented in Ligurian cuisine from at least the 18th century
Trofie al pesto is the canonical pasta preparation of Liguria — trofie, a short, tightly twisted pasta rolled by hand, dressed with pesto alla Genovese and accompanied by the characteristic Ligurian combination of green beans and potato cooked in the same pot. The combination of pasta, vegetable, and starch in a single pot, unified by pesto at the moment of serving, is one of the most distinctive pasta traditions in Italy and speaks to the simplicity and resourcefulness of Ligurian coastal cooking. Trofie originate from the Recco and Camogli area east of Genoa, where they have been made by hand for centuries. The pasta is made from flour and water only — no egg — and the shaping requires a specific technique: a small piece of dough is placed against the palm and rolled against the work surface with the other palm in a quick, spiralling motion that simultaneously extends and twists the piece into its characteristic form. Each trofie should be about 4cm long, tapered at both ends, tightly spiralled through the centre — the twist is what grips and holds the pesto against the pasta's surface. The Ligurian tradition of cooking the green beans and waxy potato in the same pot as the pasta achieves a specific result: the potato starch released into the pasta water thickens it, the potato and beans absorb some of the pasta's starch, and the vegetable flavours permeate the cooking water. This enriched water then plays a critical role in the sauce: when drained together, potato, beans, and pasta are dressed immediately with pesto, the pasta water loosening and emulsifying the pesto into a glossy coating. The potato's starchiness acts as a natural emulsifier. The result is fundamentally different from pesto on pasta alone — richer, more cohesive, more complex.
Vibrant pesto cling on textured twisted pasta with earthy potato and fresh green bean — bright, herbaceous, and satisfying
Hand-roll each trofie individually — the spiral twist is not achievable with mechanical extrusion Cook potato and green beans in the same pasta water — the released starches thicken the water and enrich the final sauce Add pesto off the heat — never cook pesto, which destroys its aromatic compounds Dress immediately at service — trofie al pesto does not hold; it must be eaten freshly dressed Use the enriched pasta water to loosen the pesto to a flowing, coating consistency
The potato should be diced into 1.5cm cubes — large enough to remain intact but small enough to cook with the pasta Fine green beans (haricots verts) rather than wide flat beans cook to the right texture in the same time as the pasta For a restaurant service of hand-rolled trofie at scale, pre-shape and freeze — they cook from frozen in the same time as fresh A drizzle of raw Ligurian olive oil over the dressed pasta brightens and adds an aromatic top note The proportion of potato-to-pasta in the serving bowl should be roughly 25% potato — enough to notice, not enough to dominate
Using dried commercial trofie — the rough texture of hand-rolled pasta grips pesto far more effectively Cooking the potato separately — the shared pot is the technique, not a shortcut Adding pesto to a hot pan and tossing over heat — the basil oxidises to an unpleasant bitter flavour Skipping the pasta water — pesto without starch water becomes a dry, clumped coating rather than a smooth sauce Over-salting — Ligurian pesto already contains both Parmigiano and Pecorino; the dish needs minimal additional salt