Fruity and fresh!
Put your coupe glass into the freezer.
Put the Gin, sugar syrup, lemon juice and grenadine into a cocktail shaker with ice and shake until cold.
Strain the cocktail to remove the ice and put back into the cocktail shaker with the egg white.
Shake vigorously to emulsify the egg white and to create a foam.
Tip into your glass without straining.
Garnish with some fresh or frozen raspberries.
Hints and Tips
The traditional Clover Club is made with vermouth and fresh raspberries instead of grenadine and sugar syrup:
Muddle a handful of raspberries in the shaker before adding the other liquids then shake as indicated above. When straining, double strain with a sieve to remove all the seeds. In my experience this gives you a less sweet drink but one that is still very fruity, but I guess the sweetness level depends on the raspberries you have.
The method I have given above involves a "reverse dry shake" method, which I found out about here. Technically you can get a froth by shaking all ingredients except the garnish without ice first for 30 seconds, then shake with ice. This is less fiddly as you don't have to strain back into the shaker, but be careful not to undo your hard work getting a good froth when you then add the ice!