Add the cottage cheese, vanilla protein powder, sweetener of choice, peppermint extract, and a pinch of salt into a high-speed blender or food processor. Blend on high until the mixture is completely smooth and creamy. Ensure there are no remaining cheese curds to achieve a texture similar to melted ice cream.

Line a small baking sheet or rectangular glass container with parchment paper. Pour the blended cottage cheese mixture onto the center of the parchment. Use a spatula to spread the mixture evenly until it is about 1/4 to 1/2 inch thick. Avoid spreading it too thin, or it will become brittle when frozen.

Sprinkle the crushed candy canes and mini dark chocolate chips evenly over the top of the mixture. Gently press the toppings down with the back of a spoon so they stick to the base. Place the tray in the freezer for at least 3 to 4 hours, or until the bark is completely solid and firm to the touch.

Once frozen, lift the parchment paper out of the tray. Use a sharp knife or your hands to break the bark into irregular, bite-sized pieces. Serve immediately while still frozen. Store any leftovers in an airtight container or freezer bag in the freezer to prevent melting.