Recipe by Dan Sabo found here in Punch magazine.

Ingredients

• 1 oz Campari
• 1 oz dry vermouth, preferably LoFi
• 3/4 oz grapefruit juice
• 1/2 oz lemon juice
• 1/2 oz simple syrup
• 1 egg white
• 2 dashes orange bitters, preferably Regans' Orange Bitters

Instructions

• Add all ingredients to a cocktail shaker and dry shake
• Add ice and shake again
• Strain into a chilled coupe glass