Ingredients
Equipment
Method
Prep and Cook
- In your slow cooker, whisk together the pumpkin puree, apple cider, brown sugar, maple syrup, cinnamon, ginger, nutmeg, cloves, and salt until completely smooth. Scrape down the sides so no sugar or spices stick to the walls.
- Cook on LOW for 5 to 6 hours with the lid slightly ajar (prop it open with a wooden spoon) so steam can escape. Stir every 45 minutes, scraping the bottom and sides, until the mixture has thickened to the consistency of soft peanut butter and mounds slightly on a spoon. It will reduce by about one-third.
- Turn off the heat and stir in the vanilla. Use an immersion blender to puree until completely smooth, or transfer carefully to a regular blender in batches. The butter should be thick enough to coat the back of a spoon without running.
- Let cool to room temperature, then transfer to clean half-pint jars. Refrigerate for up to 3 weeks, or freeze for up to 6 months. The butter will thicken further as it chills.
Notes
For a deeper caramel flavor, substitute half the brown sugar with maple sugar or coconut sugar. If your slow cooker runs hot, check and stir more frequently after hour 4 to prevent scorching. This is not safe for water-bath canning due to the low acidity - refrigerate or freeze only.
