1 pound frozen pineapple chunks
1/2 cup unsweetened pineapple juice
1/2 cup unsweetened coconut milk
1 tablespoon granulated sugar
Place the pineapple, pineapple juice, coconut milk, and sugar in the pitcher of a high-powered blender or food processor. Process continually until the fruit is completely broken down and the mixture takes on the texture of light and airy soft-serve ice cream.
Transfer to a resealable container and freeze for 1 to 2 hours before serving.