Where should I eat in Sicily, and which local food or drink is worth trying?

Etna is farmland as much as it is a volcano. The Parco dell'Etna's activity plan describes Zona B, the general reserve, as about 26,000 hectares — some 64,000 acres — carrying pine, oak, holm oak, chestnut, vineyards and hazelnut groves, much of it privately owned, with the zone explicitly balancing protection against traditional agriculture and forestry. Eating on the mountain's flanks is eating from that zone: nuts, wine and fruit grown on volcanic soil inside a protected area that was drawn to keep farming in it.

Below Zona B, Zones C and D form the outer belts at roughly 600 to 800 meters — about 1,970 to 2,620 feet — and the plan describes them as heavily developed, with balanced economic and tourism growth as their stated purpose. That is the belt where building is concentrated. The distinction matters when you are choosing where to base yourself: the farmed zone and the developed zone are stacked one above the other, not mixed.

For wine with dinner, the geography is defined in the EU register. The protected designation Cerasuolo di Vittoria covers territory in three Sicilian provinces: in Ragusa the whole of Vittoria, Comiso, Acate, Chiaramonte Gulfi and Santa Croce Camerina plus part of Ragusa itself; parts of Niscemi, Gela, Riesi, Butera and Mazzarino in Caltanissetta; and parts of Caltagirone, Licodia Eubea and Mazzarrone in Catania. A bottle from that zone is a south-eastern wine, not a Palermo one.

The island's food regions are separated by water as often as by road. The Regione Siciliana's maritime service contracts cover five distinct island systems — Eolie, Egadi, Ustica, Pantelleria and Pelagie — with Trapani–Favignana and Trapani–Pantelleria among the main routes and Porto Empedocle serving Lampedusa and Linosa. Pantelleria and the Egadi are not day trips from the Baroque south-east; they are their own food territories reached on their own schedules.

• On the mountain — Base yourself in the Zone C and D belt at roughly 600 to 800 meters, where the towns are, and eat from the Zona B land above it.
• In the south-east — Order within the Cerasuolo di Vittoria zone. Vittoria, Comiso and Acate are all inside it in full.
• On the islands — Treat Pantelleria and the Egadi as separate trips with their own crossings from Trapani or Porto Empedocle.

Much of Zona B is privately held, so the agricultural landscape inside the park is working farmland rather than a visitable attraction, and access depends on the owner rather than the park. The island routes add a second constraint: five island systems on separate contracted calendars means a food itinerary that strings islands together is a ferry problem before it is a restaurant problem.

The Sicily dinner-and-wine answer in this group goes into what the Cerasuolo di Vittoria specification actually requires of the bottle; the when-to-visit answer sets out the seasonal tiers on the island crossings.