Gastronomy in France is a huge topic that must be lived to be understood and appreciated. You can taste the specialties (foie gras, truffles, seafood) or simply a quality cuisine in many good French restaurants in Paris.
Obviously, it is impossible to come to France without eating cheese. It is eaten after a meal with bread and very popular with certain wines.
France, it is also about its pastries and cakes. The croissants, chocolate and other breads such as baguette, are a specific gastronomical heritage.