Using a vegetable peeler, peel off all the pear skins.
After that, cut the pear in half from the top to the bottom.
Take the knife and make a cut from the stem to the bottom on one side. Repeat on the other side, then jiggle the core out.
Roughly chop the pears and add them to the slow cooker.
Add remaining ingredients and stir.
Cook on low for 3-4 hours, or on high for 2 hours, until the pears are falling apart when stirred.
Blend the pears with an immersion blender, or transfer in batches to a blender or food processor.
Store in the fridge for up to 2 weeks, or freeze for 6-9 months.
Notes
Stovetop Instructions: combine all ingredients in a heavy-bottomed saucepan. Cook uncovered on low for 1-2 hours, stirring often, until pears are falling apart and soft.All pears, including Asian pears, will work in this sauce. Choose ripe pears that you would select for eating fresh.You can leave the skins on if you prefer, but it will impact the texture a bit.