Place all Soup ingredients (except salt and pepper) in a large pot over high heat and bring to boil, then turn down to medium and let it simmer for 10 to 15 minutes, or until the cauliflower is very soft.

Use a hand held blender and blend until smooth (Note 1), then add salt and pepper to taste.

If the soup is too thick for your taste, add more milk, water or stock (and more salt if needed). If you want it even thicker, let it simmer on the stove for a while longer to reduce down and thicken (be careful not to reduce it so much that it is too salty).

Serve, garnished with fresh thyme leaves and drizzled with cream and/or olive oil, if desired.