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