Mix sweetener and soy milk, microwave for 50 seconds.
Add cacao mass, microwave for 30 seconds.
Add egg and whisk quickly.
When the surface is slightly set, air fry at 160°C for 5 minutes or bake in the oven at 170°C for 7-8 minutes.
Refrigerate for 1-2 hours.
Optional: Add 1g of salt for enhanced flavor.