01 - Combine pineapple, granulated sugar, and lemon juice in a saucepan. Heat gently over medium setting for 5 minutes until pineapple softens and sugar is fully dissolved. Remove from heat and let cool to room temperature.
02 - Transfer the 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, pure vanilla extract, and salt. Incorporate the pureed pineapple mixture and stir until evenly combined.
04 - Cover the bowl and refrigerate for at least 2 hours until thoroughly chilled.
05 - Pour chilled mixture into an ice cream maker. Churn according to manufacturer's guidelines for 20 to 30 minutes until mixture becomes thick and creamy.
06 - Transfer churned ice cream to a freezer-safe container. Cover securely and freeze for a minimum of 4 hours until the texture is firm.
07 - Allow ice cream to stand at room temperature for 5 minutes prior to scooping and serving.