Prepare the Glass: Rub a lime wedge around the rim of a margarita glass. Dip the rim into sea salt to coat it evenly.

Combine Ingredients: In a cocktail shaker, add the tequila, blue curaçao, lime juice, coconut cream, agave syrup, and egg white (if using). The egg white gives the cocktail its signature foam.

Dry Shake: Before adding ice, give the mixture a "dry shake" (without ice) to help emulsify the egg white and create a nice, frothy texture.

Shake with Ice: Add a handful of ice cubes to the shaker and shake vigorously for 15-20 seconds until the cocktail is well chilled.

Strain and Pour: Double strain the mixture into your prepared margarita glass using a fine mesh strainer to remove any ice shards and ensure a smooth drink.

Garnish and Serve: Garnish with a lime wedge on the rim and serve immediately. Enjoy the smooth, tropical flavors with that signature seafoam-like froth on top!