I remember the first time I came across “American Sauce,” too. It reminded me of a less chunky Thousand Island dressing. In any case, as soon as I read this, I ran to check the ingredients in our jar to make sure this vegetarian hadn’t been slathering lobster stock on his sandwiches. Whew! Our supermarket brand doesn’t use it. Check out the story behind the name in this article by a fellow expat blogger: Cheese FC. Bon appétit !