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Rösti is a satisfying place to start after a day outside: crisp potatoes, with the toppings depending on the kitchen. Fondue makes dinner a shared affair, although an entire pot of cheese is a commitment. There is no need to tick off every Swiss classic in one meal.
Look at the menu before choosing the restaurant. Traditional does not mean every dish is served every season, and fondue is not automatically vegetarian: cheese ingredients and the cooking liquid can matter. Tell the restaurant about allergies, dietary restrictions or alcohol preferences when booking. Ask what is local and in season, too.