To the glass, pour in the prosecco, club soda, and elderflower liquor. Stir to combine.
Add a sprig of mint to the glass.
Garnish with a lime wheel or wedge.
Notes
Slap the mint leaves before adding to the drink so release the oils and aromatics from the mint itself. Sounds weird, but it works!Do NOT shake the cocktail as the carbonation from club soda and Prosecco will burst out of the shaker and cause for a very sad, depressing event which you do not want to happen. So, use a spoon to stir!