In a cocktail shaker, place gin, Cocchi Americano, absinthe, passion fruit purée, lemon juice, simple syrup, bitters, and saline. Add ice. Cover and shake until cold. Double strain into a rocks glass over fresh ice. Garnish with blue ice ear, if desired.
Notes
*To make saline solution, combine ¼ cup water and 2½ teaspoons salt. To make ice ears, add 1 tablespoon pea flowers to 8 ounces water. Soak flowers until water is fully saturated with indigo color, and freeze in ear-shaped ice molds.
Recipe by Louisiana Cookin' at https://louisianacookin.com/ear-and-loathing/