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.
6 pounds any variety of apples, 1 cup dark brown sugar, 1 cup granulated sugar, 1 1/2 tablespoons apple pie spice
After 10 hours, take an immersion blender to the mixture and blend until smooth and no chunks remain.
Add the bourbon, stir to incorporate.
2 ounces bourbon whiskey
Store in mason jars in the refrigerator for up to 3 weeks or freeze for up to 3 months.