Add mint leaves to a large chilled wine glass.
Fill the glass with ice cubes.
Pour in the elderflower liqueur and soda water.
Top with Prosecco.
Briefly stir once or twice to combine without losing carbonation.
Garnish with a lime wedge and a small bouquet of fresh mint sprigs.
Roland Gruber, a bartender in Naturno, is credited with inventing the Hugo around 2005 as a lighter, floral alternative to the Aperol Spritz - it spread across northern Italy and Austria before going global. Muddle the mint leaves very gently if at all; bruising them too hard releases bitter chlorophyll and muddies the delicate elderflower note.
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