If using vanilla pods, split each pod lengthwise with a sharp knife and scrape out the seeds.
Add the vanilla seeds (or vanilla extract), whole milk, heavy cream, confectioners’ sugar, and salt to a mixing jug or bowl. Whisk until the sugar is completely dissolved and the vanilla is evenly distributed.
1 cup whole milk, ½ cup heavy cream, ⅓ cup confectioners’ sugar, 2 whole vanilla pods, Pinch of salt
Pour the mixture into a Ninja Creami pint container. Secure the lid and place the container on a completely flat surface in the freezer. Freeze for 24 hours, or until fully solid.
Remove the lid and place the frozen pint into the Ninja Creami machine. Run the Ice Cream cycle.
If the ice cream appears crumbly after spinning, add 1 to 2 tablespoons of milk to the center and run the Mix-In cycle once.
Serve immediately for a soft, creamy texture, or return the ice cream to the freezer for a firmer scoop.