Preheat your oven to 300 degrees and line a cupcake mold with liners or grease.
Finely chop the cacao butter and set aside.
In a second large bowl, add the cream cheese, eggs, sour cream, vanilla extract and liquid stevia and combine using a hand mixer.
Microwave the butter in a small bowl and add the finely chopped cacao butter to it. Using a spatula combine the mixture until the cacao butter has fully melted. You may have to microwave it 1 or 2 more times.
Slowly add the melted cacao butter to the cream cheese mixture as you combine with an immersion blender. You can also blend this in your normal blender to get all the chunks out.
Evenly distribute the mixture into a 12 cupcake tin. Bake for 30-35 minutes. They will inflate, which is fine.
Allow to cool for 20 minutes and then put in the fridge for 1 hour to set. Enjoy!