Place the stainless steel inner pot inside the Instant Pot®. Add the bone of a chicken breast or a bone-in chicken breast with 2 cups (½ liter) of water. Season with salt, ginger, and garlic. Close and lock the Instant Pot® lid. Make sure the steam release handle is turned to Sealing. Press Pressure Cook, pressure level High, and set time to 15 Minutes.
When done cooking, let the pressure release naturally for 10 Minutes, then pressCancel and turn steam release handle to Venting.
Once all the steam has been released, open the lid, remove the bone from the bowl and add to the broth: soy sauce, vinegar, dried mushrooms, mushrooms sautéed in olive oil and garlic, rice noodles and algae (optional). Press Saute and set time to 10 Minutes.
Serve on two plates, with chopped chives, soft-boiled eggs, shelled and cut in half, and Kassler loin.