How to Make It
Process half of the pineapple (2½ cups) in a food processor until smooth, 30 seconds to 1 minute. Place butter and honey in a medium saucepan; cook over medium until melted. Increase heat to medium-high; stir in pureed pineapple. Cook, stirring constantly, until liquid is evaporated and mixture turns golden, 12 to 14 minutes. Stir in vanilla, salt, and remaining 2 ½ cups chopped pineapple. Serve at room temperature.
For parfait: Spoon ½ cup plain whole-milk Greek yogurt into a glass and top with ¼ cup Pineapple Caramel; repeat layers once. Top with 1 tablespoon chopped toasted macadamia nuts.