| 1. | Put potatoes, onion, salt and water in cooker. |
| 2. | Close cooker. Bring to full pressure on high heat. Reduce heat and cook for 3 minutes. |
| 3. | Remove cooker from heat. Allow to cool naturally. |
| 4. | Open cooker. Mix the mixture smooth in a blender or mash it through a sieve. |
| 5. | Return soup to cooker. Add milk and pepper. |
| 6. | Place cooker on medium heat and bring to boil, stirring constantly. Add cheese and stir till cheese melts. Serve immediately, garnished with parsley. |