01 -
In a saucepan, combine marshmallow spread, canned pumpkin puree, light brown sugar, water, heavy cream, and pumpkin pie spice. Heat over low heat, stirring constantly until the mixture is smooth and the sugar is fully dissolved.
02 -
Remove the saucepan from heat. Immediately stir in vanilla extract and a pinch of fine sea salt until fully incorporated.
03 -
Allow the mixture to cool completely before transferring it to a clean jar. Refrigerate and use within one week.