01 - Combine pineapple, granulated sugar, and lemon juice in a saucepan. Cook over medium heat for 5 minutes until the pineapple softens and sugar dissolves. Let the mixture cool to room temperature.
02 - Puree the cooled pineapple mixture in a blender or food processor until completely smooth.
03 - In a large bowl, whisk together heavy cream, whole milk, vanilla extract, and salt until blended. Stir in the pineapple puree.
04 - Cover the mixture and refrigerate for at least 2 hours until thoroughly chilled.
05 - Pour the cold mixture into an ice cream maker and churn according to manufacturer’s instructions, typically 20 to 30 minutes, until thick and creamy.
06 - Transfer the churned ice cream to a freezer-safe container. Cover and freeze for a minimum of 4 hours, or until set and scoopable.
07 - Allow the ice cream to sit at room temperature for 5 minutes before scooping and serving.