Combine the ingredients: In a large, heavy-bottomed pot, combine the pumpkin puree, sugars, and spices. Stir well.
Cook it down: Bring the mixture to a gentle simmer over medium heat. Reduce the heat to low and cook for 30–40 minutes, stirring often, until the mixture thickens and becomes glossy.
Add the vanilla: Stir in the vanilla extract and lemon juice once the butter has finished cooking.
Cool slightly: Allow the pumpkin butter to cool before transferring to jars.
How to Can Pumpkin Butter
Prepare your jars: Sterilize jars and lids in hot water. Keep them warm until ready to fill.
Fill jars: Ladle hot pumpkin butter into hot jars, leaving ½ inch headspace.
Remove air bubbles: Run a knife or bubble remover along the inside of the jar. Wipe rims clean.
Seal: Place lids and rings on jars, tightening until fingertip tight.
Process: Place jars in pressure canner and process for 60 minutes (for half-pints and pints) at 10 pounds of pressure (adjust altitude if needed).
Cool: Remove jars and allow them to cool undisturbed for 12–24 hours. Check seals before storing.
Notes
Storage Instructions
Refrigerator: Store in airtight jars for up to 2 weeks.
Freezer: Freeze in containers for up to 12 months.
Canned (Rebel): Store sealed jars in a cool, dark place for up to a year.