What's on offer here? Sermest Büyükada Cafe | Restoran | Kahvaltı is a fixture on the food scene in Adalar. What size are we talking? Somewhere between a family joint and a full restaurant — average footprint. Do you need a reservation? For weekend prime time, yes; weekdays you're fine walking in. What kind of food? Whatever matches the local palate — it tracks the neighborhood's taste.