Rotten cheese with wriggling live maggots? Sardinia’s beloved casu marzu might be illegal to sell – but tourists are mad for it

Adventurous foodies visiting the Italian island love eating casu marzu, paired with the flatbread, pane carasau, and gulped alongside the local red wine Cannonau – but the dubious legal status of eating insect-infested, decomposing pecorino makes it tricky to find