In a wine glass, add a generous handful of fresh blueberries. Using a muddler or the back of a spoon, gently press the blueberries down for about 15–20 seconds until they start to release their juices.

Drizzle in a small amount of lavender syrup, balancing with sweetness while ensuring it's not overpowering.

Pour in non-alcoholic elderflower liqueur cordial over the muddled blueberries, stirring lightly for about 10 seconds.

Fill the glass with ice cubes, leaving a little room at the top for the sparkling prosecco.

Slowly pour non-alcoholic prosecco into the glass, filling it nearly to the brim, allowing the bubbles to rise and mingle.

Add an optional garnish: a sprig of lavender or a twist of lemon peel on the rim of the glass.