Pour cold milk in a suitable bowl. Cover the bowl with a lid and allow it to sit at room temperature for 3 to 4 days.
After which, the cheese will sink to the bottom of the bowl. Poke a toothpick into the cheese. If the toothpick stands, it means that the cheese is ready.
Remove the top part of the cheese (the layer of cheese which is flowing).
In the sink or a bowl, place a cheese cloth over a colander or a Käsnapf. Pour the bowl of cheese into the cheese cloth and press out as much fluid as possible. You will get about 60g of cheese.
Allow the cheese to dry for a few minutes and transfer it to a small bowl.
Add heavy cream, yoghurt, chives and seasoning to the cheese. Use an egg whisk to mix the ingredients.
Serve the Bibiliskäs with some potatoes!