Gratin Dauphinois

The earliest known French potato dish is pommes de terre dauphinoises, which originated in Switzerland in 1600. I tasted this divine dish of scalloped potato, cheese, and milk, a specialty of the region near Annecy, at the home of Ruth Moos (see page 3), who made it as an evening dairy meal served with a salad and vegetables. Instead of covering the potatoes and the cheese with the traditional beef bouillon or broth, Ruth makes it kosher style using only cream or milk.