Add all "Ice Cream Base" ingredients to a blender and blend until smooth.
Pour your blended mixture into your Ninja Creami pint and freeze on a level surface for 24 hours.
Once your base is frozen, remove it from the freezer and run the pint under hot water for 1-2 minutes (all sides, including the bottom).
Spin on Lite Ice Cream mode.
Respin 1-2 more times until it reaches that perfect creamy consistency.
Create a well in the center (if one hasn’t already formed) and add your chopped chocolate and walnuts. Saving a little of each for the topping! Spin on Mix-In mode.
Sprinkle the remaining chopped chocolate and walnuts over the top and enjoy!