Charlie (the) Oscar

Chill the cocktail coupe by placing it in the freezer or filling it with ice water, then set aside.

Combine the gin, triple sec, elderflower liqueur, and freshly squeezed orange juice in a cocktail shaker.

Add a few dashes of Angostura bitters to the shaker.

Fill the shaker with ice and secure the lid.

Shake vigorously until the mixture is well-chilled.

Remove the coupe from the freezer or discard the ice water.

Strain the cocktail into the chilled coupe glass.

Serve immediately and enjoy.