Sunday Lunch at the palace: Sausage roll, cauliflower couscous, garden greens, water in a reusable metal bottle, and the other national drink of Scotland (after whisky.) The candy goes back to the hotel in case I need a midnight snack. 🍬 Irn-Bru has long been the most popularly consumed soft drink in Scotland, consistently beating rivals such as Coca-Cola, Pepsi and Fanta, and reportedly sells 20 cans every second throughout Scotland.