Add the milk, almond milk, protein powder, cookie butter powder, powdered peanut butter, pudding mix, sweetener, sea salt, and toffee extract to a Ninja Creami pint container.

Use a hand blender or milk frother to blend until the mixture is completely smooth.

Place the pint in the freezer and freeze overnight until solid.

Remove the frozen pint and let it sit at room temperature for about 10 minutes or run the outside under warm water.

Insert the pint into the Ninja Creami and run the Ice Cream setting.

Create a small hole in the center of the ice cream and add the chopped Butterfinger pieces.

Run the Mix-In function to distribute the candy pieces evenly.

Scoop and enjoy.