Swiss "French" dressing/vinaigrette
I recently flew SwissAir and on each meal service, they served a Swiss "French" dressing with the salad. I was at first apprehensive because I don't like "American French" dressing (the orange kind) but was really surprised with the Swiss version - creamy white and very flavorful with a great tang. I can't let go of taste and have been craving it since I was in flight. I've been able to find some scant recipes online but not sure if they would yield the results I've tasted.
Does anyone have a recipe they've made or can attest as authentic or even know what I'm referring to? Thank you in advance!