In a blender, combine the milk, heavy whipping cream, maple syrup, spices, vanilla, shredded carrot, and salt. Blend until mostly smooth.
Pour the base into your Ninja Creami pint container. Secure the lid and freeze for 24 hours until solid.
For the cream cheese mix-in, beat together the softened cream cheese, maple syrup, milk, and vanilla in a small bowl with an electric mixer until smooth. Chill in the fridge until ready to use.
After freezing, place the pint into the Ninja Creami and use the “Ice Cream” function to spin.
Use a spoon to create a small tunnel in the center of the ice cream. Pour in the cream cheese mixture and use the “Mix-In” function to swirl it through.
Add in chopped walnuts using the “Mix-In” function. Serve cold.
Notes
Use freshly shredded carrots for the best texture. Bagged shredded carrots are usually thicker and drier, so they may not blend as smoothly into the ice cream base.
Make sure the Ninja Creami pint freezes for the full 24 hours before spinning. The base needs to be frozen solid for the best results.
If the ice cream looks crumbly after the first spin AND you plan to omit the cream cheese mixture, add a splash of milk and use the Re-spin function until creamy.
Pecans can be used instead of walnuts. You can also leave the nuts out completely if you prefer.
Pumpkin pie spice can be used in place of the cinnamon, nutmeg, and ginger.
Brown sugar can be used instead of maple syrup, but make sure it is fully dissolved in the milk mixture before freezing.
Raisins or shredded coconut can be added with the walnuts if you like them in carrot cake.
Store leftovers in the Ninja Creami pint container in the freezer with the lid tightly secured. This ice cream is best enjoyed within 1 to 2 weeks. Re-spin before serving leftovers for a creamier texture