To make something simple great, pay attention to the details. Here, instead of a basic Béchamel I opted to add basil.
Apply your béchamel to thin white bread.
Add ham and a top layer of the (basil) cream sauce.
Cover with the top slice of bread and shredded cheese (here Emmentaler). Broil (toaster oven is fine).
Add frozen concentrated orange juice (here, homemade) to mustard powder.
Add white wine vinegar and mix and let sit a day or so. Serve your homemade prepared mustard with the Croque.
Because one may not legally serve wine without offering some food to go with it, the simple Croque is a French staple. You will find it in every café and more than a few roadside rest stops.
It can best be described to those who have never had one, as a simple ham sandwich, with the cheese on the outside. The key to any good Croque is the quality of the béchamel. To make a Croque Madam, just serve with an egg.
Click on the image to see the the step by step gallery.