Fagioli lardari are a white bean of modest size, the kind that dries readily and sits neatly in the hand. Their plump, almost spherical outline has earned them another name, tondini, a nickname that already hints at why they catch the eye before they ever reach the pot.
What holds attention at the table is the contrast inside each seed. The skin stays tender once cooked, yet the interior keeps its shape instead of collapsing, and the flavour is described as intense and characteristic rather than shy. That combination—soft coat, stubborn heart, concentrated taste—is the material reason these beans feel worth seeking out.
Regione Campania places the crop in the province of Naples, and more precisely in the municipality of Agerola. That geographic frame is the useful next step: if you want to understand where the bean belongs, look to that hillside comune rather than treating it as a generic Campanian staple everywhere.