Willsour

Chill a highball glass by filling it with ice water and setting it aside.

Combine the pear brandy, St-Germain, simple syrup, and freshly squeezed lemon juice in a cocktail shaker.

Fill the shaker with ice cubes to provide a thorough chill.

Secure the lid and shake vigorously until the mixture is well-chilled.

Empty the highball glass of ice water, then strain the cocktail mixture into the glass filled with fresh ice.