If you are using granulated monk fruit or stevia it is best to first dissolve it in boiling hot water so you don't end up with sandy textrue of undissolved sweetener. If using liquid monk fruit or stevia then you don't need to worry just drop the disired amount into the pint container. 2 teaspoons granulated monk fruit or stevia sweetener (or 12 drops if using liquid sweetener)
Blend the full-cream milk, cream, Greek yogurt, vanilla protein powder, dissolved sweetener and vanilla extract until smooth and creamy using a blender or immersion blender. If using immersion (stick) blender, you can blend directly in the pint container.
Pour the ice cream base into your Ninja Creami pint container, making sure not to exceed the max fill line.
Seal the pint container with an airtight lid and freeze on a level surface for at least 24 hours until completely solid to create a good solid base.
Place the frozen pint container into your Ninja Creami machine and process using the “Ice Cream” setting (one-touch program).
After the first spin, check the texture. If it’s crumbly or too icy, add a splash of full-cream milk and run the Re-Spin cycle until you achieve a creamy consistency.
Optionally, create a small hole in the center of the ice cream and add your favorite mix-ins like sugar-free chocolate chips or chopped nuts. Use the Mix-In function to incorporate.
Serve immediately for the best creamy texture or store in an airtight container in the freezer for later.