Muddle the basil and lime juice in your shaker very gently until the basil is lightly bruised with 4-5 gentle presses
Add the cucumber juice, alcohol-free white wine, and elderflower cordial or syrup to the shaker with a few cubes of ice
Replace the lid and shake for about 15 seconds
Strain into a martini or coupe glass
Garnish with extra basil and/or edible flowers
