Fill a Collins glass with plenty of ice.
If using powdered sugar, shake the K5, lemon juice & powdered sugar with ice and strain
into Collins glass.
If using sugar syrup, combine it with K5 and lemon juice in the Collins glass. Top up with soda water and stir well.
Serve with a lemon or orange slice (or both!) and top it all off with a cherry.
Add a straw and enjoy. Cheers!