01 - Combine diced pineapple, granulated sugar, and lemon juice in a saucepan. Heat over medium flame for 5 minutes until the pineapple softens and sugar fully dissolves. Remove from heat to cool to room temperature.
02 - Process the cooled pineapple mixture in a blender or food processor until completely smooth.
03 - In a large mixing bowl, whisk heavy cream, whole milk, vanilla extract, and salt until well combined. Incorporate the pineapple puree into the dairy base and stir thoroughly.
04 - Cover the bowl and refrigerate the mixture for a minimum of 2 hours.
05 - Pour the thoroughly chilled mixture into an ice cream maker. Churn according to manufacturer's guidelines, generally for 20 to 30 minutes, until a thick and creamy texture develops.
06 - Transfer the churned ice cream to a freezer-safe container. Cover securely and allow to freeze for at least 4 hours or until set.
07 - Before serving, let the ice cream stand at room temperature for approximately 5 minutes to facilitate easier scooping.