Killer Cocktail

Shake the Disaronno amaretto, Rutte Dry Gin, Italian red bitter liqueur, passion fruit syrup, and freshly squeezed lemon juice with ice.

Strain the mixture into an Old Fashioned glass filled with crushed ice.

Garnish with a lemon zest twist, cut to resemble a shark fin, and add three drops of cranberry bitters for a dramatic "bloody shark attack" effect. Alternatively, use grenadine for the same visual effect.