In a cocktail shaker, combine ½ cup chopped pineapple, 6 torn mint leaves, 1½ oz spiced rum and 3 ice cubes. Shake well and strain into a Collins glass filled with ice. Top with ginger beer, and drizzle over ½ oz Demerara Simple Syrup (see recipe below). Garnish with broiled pineapple chunks (see recipe below) and two pineapple leaves.
To make Demerara Simple Syrup, pour ½ cup boiling water over ½ cup demerara sugar. Stir to dissolve sugar and refrigerate until chilled.
Recipe from: St. Once, Christopher. "Ambrosial Ginger Fizz." Food & Drink. Holiday 2013.