The "mystery" is the ingredients you don't tell the kids are in it. As far as you're concerned, it's just potato soup.
5-6 medium-large yellow potatoes, cubed with skins on
1 head califlower, flouretted (is that a word?)
1 medium-large yellow onion, cubed
1 box organic free-range chicken broth
(I would have included some carrots, but didn't have any on hand).
Throw it all into a large pot. Simmer til veggies are all very tender. Whir it around in a food processor until smooth. Season to taste (I used salt, pepper, paprika and garlic powder.
Very nice winter soup.