Step 1

Fill a martini or coupe glass with ice and set this aside to chill while you make the cocktail.

Step 2

Combine gin, blackcurrant cordial, lemon juice, and egg whites in a cocktail shaker. Add in a sprig of fesh thyme and use a cocktail stirrer to muddle the leaves into the liquids.

Step 3

Add on the lid and shake for 15 seconds. This is called a 'dry shake,' which better mixes in the egg white.

Step 4

Fill the shaker with ice, and shake again for 10 seconds until well chilled and combined.

Step 5

Remove the ice from the glass, then strain the drink into the chilled cocktail glass.

Step 6

Garnish your Blackcurrant Gin Sour with a sprig of fresh thyme.