Thomas Keller is the very best! This sandwich is my new favorite sandwich. The familiar flavors in this sandwich are intense and very satisfying. Mornay made with gruyere has a very pleasing flavor. This would be a great introduction to French cuisine. I am very happy that during the past 7 months I have used this blog to have the experience and knowledge to make food this exciting.
In the video for making a croque madame, Thomas Keller makes a Pullman loaf  of brioche. The recipe in the Bouchon Bakery cookbook for making a Pullman loaf is not a brioche recipe. I used a recipe for brioche (Nanterre ) from this book. The loaf that I made was a perfect size for making sandwiches. I will probably have to increase the proportions by 1.5 to make a Pullman loaf. The ad hoc cookbook may also have a recipe for making a loaf of brioche.
The ham is black forest ham. I cooked the egg by heating the pan over medium until some butter melted, and then I added the eggs, and then I changed the heat to low after covering the pan with a lid. After using a thermometer while baking bread, someone can know how many minutes to bake bread using their equipment.
Download The Recipe: