In France, what lemonade style serves lemon juice, syrup and water separately?

In France, the lemonade style served with lemon juice, syrup and water separately is citron pressé.

The name means “pressed lemon,” and the drink is commonly offered in French cafés and restaurants. Rather than arriving pre-mixed, it typically comes with fresh lemon juice, sweet syrup and water—often with ice—so the customer can combine them and adjust the balance of sourness, sweetness and dilution.

That presentation is part of the appeal. Someone who prefers a sharper drink can use more lemon juice, while another person can add extra water or syrup. The result is related to traditional still lemonade, not to the clear carbonated soft drink that the word “lemonade” often suggests in Britain or Australia.

Citron pressé is also called citronnade in some descriptions, although the terms can cover slightly different preparations depending on context. It should not be confused with a diabolo, another French café drink made by mixing lemon soda with flavoured syrup. Nor is it pastis or another alcoholic aperitif: citron pressé is ordinarily a non-alcoholic lemon drink.