Start by chilling the cocktail glasses with ice.
Then add a pinch of freshly grated ginger into a cocktail shaker and muddle gently to bring out more flavor.
Next, add the lemon juice, sugar syrup and, of course, the star ingredient – the Cognac (so it’s equal parts lemon juice and sugar syrup and double the amount of Cognac).
Fill the shaker with ice and shake for 10 seconds.
Remove the ice from the chilled glasses. Add fresh ice to the glasses, strain the drink into them and garnish with lemon zest.