01 - Combine diced pineapple, granulated sugar, and lemon juice in a saucepan. Cook over medium heat for about 5 minutes until the pineapple softens and the sugar dissolves. Remove from heat and allow to cool to room temperature.
02 - Transfer the cooled pineapple mixture to a blender or food processor and process until completely smooth.
03 - In a large bowl, whisk together heavy cream, whole milk, vanilla extract, and salt until fully combined.
04 - Stir the pineapple puree into the cream mixture until evenly mixed.
05 - Cover and refrigerate the mixture for at least 2 hours until thoroughly chilled.
06 - Pour the chilled mixture into an ice cream maker and churn according to manufacturer’s instructions, typically 20 to 30 minutes, until thick and creamy.
07 - Transfer the churned ice cream to a freezer-safe container, cover securely, and freeze for at least 4 hours or until the consistency is firm.
08 - Allow the ice cream to soften at room temperature for approximately 5 minutes before scooping and serving.