In the same food processor or blender (no need to wash between), combine all of the ingredients in the filling. Turn the food processor or blender on medium-high and blend for 2 to 4 minutes, or until the mixture is silky smooth and creamy. Scrape down the sides as necessary. You may need to add a bit more coconut milk or lemon juice to get it to blend smoothly if your blender isn’t super high-powered. Once it’s smooth, taste and adjust the maple syrup or lemon juice if desired, depending on your tastes.
Place in the refrigerator for at least 2 hours to set before serving. Serve chilled, and keep any leftovers in the refrigerator (or freezer for longer storage).