01 - Place apples, granulated sugar, light brown sugar, apple cider or water, ground cinnamon, nutmeg, allspice, cloves, and salt into a large heavy-bottomed pot or slow cooker. Stir thoroughly to coat apples evenly.
02 - Cover and cook on low heat or low slow cooker setting for approximately 2 hours, stirring occasionally, until apples are very soft and aromatic.
03 - Remove lid and continue cooking for 30 to 45 minutes, stirring frequently, until mixture thickens and deepens in color.
04 - Remove from heat and purée the mixture with an immersion blender or process in batches in a blender until completely smooth.
05 - Stir in lemon juice, then taste and adjust sweetness or spices as preferred.
06 - Allow to cool, then transfer to sterilized jars. Refrigerate up to three weeks or process in a water bath canner for shelf stability.