Combine chilled vodka, white rum, blue curaçao, fresh lime juice, simple syrup, dry vermouth, and egg white in a cocktail shaker. Seal and shake vigorously without ice for 12–15 seconds to emulsify and create foam.

Wet shake

Open the shaker and add the ice (about 1 cup). Seal and shake hard for 15–20 seconds until the shaker is very cold to the touch and the exterior is frosted.

Double-strain the mixture through a fine mesh strainer into the chilled coupe or martini glass to remove ice shards and any coagulated egg white bits. The drink should be pale blue with a frothy head if egg white was used.

Garnish & Finish

Float a lime wheel or place a twist on the rim. Slide a small piece of candied ginger onto a pick and rest it across the glass or drop it gently into the drink for a hint of sweet-spicy contrast.

Optionally, express lime zest over the surface or briefly fl ame a lime twist to release oils, then discard or place on the rim. Serve immediately while cold.