What cocktail can I make that uses sparkling water if I basically have all types of liqueur?

If you're looking for a cocktail that features sparkling water and incorporates a variety of liqueurs, you might enjoy exploring the "Limoncello Spritz" or "Vodka Collins". Both cocktails offer a refreshing and effervescent experience.

The Limoncello Spritz stands out with its delightful combination of lemon liqueur, champagne or prosecco, and a splash of soda water. This cocktail offers a vibrant, citrusy profile topped with bubbles, perfect for an elegant and refreshing sip at social gatherings. The use of lemon liqueur adds a zesty twist that pairs seamlessly with the effervescence of the sparkling ingredients.

Alternatively, the Vodka Collins uses soda water to complement the tangy lemon juice and sweet sugar syrup, all built upon a base of vodka. This cocktail is shaken and served cold, often garnished with a cherry and an orange slice, offering a refreshing and well-balanced taste that's perfect for both casual and formal events.

Both these cocktails highlight the delightful interplay of sparkling water with various liqueurs, providing a bubbly, refreshing beverage that can be enjoyed in many settings.