Chill the Glass: Begin by chilling a coupe or martini glass. You can do this by placing it in the freezer for a few minutes or by filling it with ice water while you prepare the cocktail.
Mix the Ingredients: In a cocktail shaker, combine the gin, black currant liqueur, lime juice, and simple syrup.
Add Ice: Fill the shaker with ice and shake vigorously for about 15-20 seconds, until the shaker is well chilled.
Strain the Cocktail: Discard the ice or water from your chilled glass, then strain the mixture from the shaker into the glass.
Garnish (Optional): If desired, garnish with a twist of lime or a few black currants on a cocktail pick.
Serve: Serve immediately and enjoy your Gothic Gimlet, savoring its rich, complex flavors.