Where, oh where can I obtain this stuff in Switzerland?

It's so simple to make, I'd never think of wasting my time trying to buy it.

Excellent response, CG, and very helpful

I have only seen it at groceries over the border in France, and it is pretty exorbitantly expensive for a small bottle.

Here is a recipe to make your own; pretty much just mayo combined with sour cream or buttermilk and some spices.

We usually bring back powder packets from the states and then mix with sour cream when in need. Easy to transport, always on hand in the house, not too heavy in the suitcase

You can get some at American Food Ave. if you are willing to order online.

Mmm, that looks good. I'm going to try it . Thanks !

The closest I came to is the Migros french yogurt dressing. You can also use it as a basis and add some mayonnaise.