1 1⁄2 oz Rye
1⁄2 oz Curaçao, Pierre Ferrand Dry Curaçao
1⁄2 oz Citron Sauvage
1 ds Grapefruit bitters
1 twst Grapefruit peel (Garnish)
Instructions
Stir, strain, up or rocks. Twist & drop in.
EDIT: Thanks for the fix!