Preheat the oven to 325°F. Line an 8-inch round cake pan with parchment paper on the bottom and sides, letting the paper rise above the rim.
Add the cottage cheese to a blender and blend for 1 to 2 minutes until perfectly smooth and creamy.
Add the eggs, powdered sweetener and vanilla to the blender. Blend on low for just 15 to 20 seconds until fully combined.
Pour the batter into the lined pan and tap it on the counter a few times to release any air bubbles.
Bake for 50 to 60 minutes, until the edges are set and lightly golden and the center has a gentle wobble.
Turn off the oven and leave the cheesecake inside with the door cracked for 30 minutes. Remove and cool completely at room temperature.
Refrigerate for at least 6 hours, ideally overnight, until firm and creamy. Lift out using the parchment and slice with a clean, warm blade for neat pieces.