Casu Marzu Sardo: Il Formaggio Vivo
Sardinia — Nuoro and Barbagia region
Sardinia's most controversial food — a Pecorino Sardo whose rind is removed and the cheese exposed to allow cheese flies (Piophila casei) to lay eggs. The larvae hatch and digest the fats, producing an ultra-soft, creamy, pungent cheese spread eaten with flatbread. Consumption while larvae are alive is the traditional form (they can jump 15cm when disturbed). The flavour is ferociously intense — ammonia-tinged, deeply fatty, with a burning aftertaste from lactic acid. Technically illegal under EU food safety law but culturally protected in Sardinia as traditional food.