"This deli and occasional cafe run by fourth generation family member Stefano Vallebona supplies The River Cafe, Le Gavroche, Harvey Nichols, Harrods and The Dorchester. The business was founded in 1890 by Stefano’s grandfather Agostino, a single-minded Sicilian who would trek on foot through Sardinia’s craggy hills to trade olive oil and bottarga with the northern states of Italy and Spain. Specialities here include cheese which is matured and cut to order in a dedicated cheese room, and a thoughtful selection of charcuterie. The mortadella in particular is exceptional, sourced from the village of Felino in Emilia Romagna. On Saturdays the warehouse turns into a cafe, serving Roman-style pizza and sharing platters." - Helen Graves