Water- if the lemonade that you are using is quite tart, use 8 ounces of lemonade and 8 ounces of water instead of 16 ounces of lemonade
Pour 16 ounces of lemonade (or 8 ounces of lemonade and 8 ounces of water if the lemonade that you are using is quite tart) into a Ninja Creami pint container and freeze on a level surface in a cold freezer for a full 24 hours.
After 24 hours, remove the pint from the freezer. Remove the lid.
Place the Ninja Creami pint into the outer bowl. Place the outer bowl with the pint in it, into the Ninja Creami machine and turn until the outer bowl locks into place. Push the SORBET button. During the SORBET function, the sorbet will mix together and become very creamy. This should take approximately 2 minutes.
Once the SORBET function has ended, turn the outer bowl and release it from the Ninja Creami machine.
Place the outer bowl with the pint back into the Ninja Creami machine and lock it into place. Choose the RE-SPIN function. Once the Ninja Creami completes the RE-SPIN cycle, remove the outer bowl from the machine. (The machine will not allow you to re-spin without first removing the pint from the machine and then re-inserting it).