Add ice to the shaker and shake hard for 15-20 seconds until the shaker becomes cold and frosty.
Discard the ice from the Coupe glass.
Using both a Hawthorne strainer and a fine-mesh strainer, double strain the cocktail into the chilled coupe glass.
Hold a grapefruit peel with the skin side facing the drink, then pinch it to release the oils over the top of the cocktail. Rub the peel along the rim of the glass. Give the peel a twist and place it on the rim of the glass to garnish.
