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Rösti is a good order after a day outside: crisp potatoes, with toppings that depend on the kitchen. Fondue is for a longer meal around a shared pot. Look at the menu before choosing a restaurant; Swiss classics are not on every menu, or necessarily served all year. For fondue, ask about the cheese ingredients and cooking liquid if you avoid animal rennet or alcohol. Mention allergies and other dietary needs directly to the restaurant; a cheese dish is not automatically vegetarian or alcohol-free.