Add apples, sugars, and apple pie spice into your slow cooker, toss everything together with a spatula to disperse the sugars and apple pie spice. Cook on low for 10 hours.
After 10 hours, take an immersion blender to the mixture and blend until smooth and no chunks remain.
Add the bourbon, stir to incorporate.
Store in mason jars in the refrigerator for up to 3 weeks or freeze for up to 3 months.