Split the endives in half.
Remove the inside stalk and blanch for 2 minutes.
Remove and refresh in iced water.
Roll the ham around the endives.
Arrange the rolls in a baking tray.
Au g rat in Cover with bechamel sauce, Emmental and a little nutmeg.
Bake in a preheated oven at a temperature of 200°C for 10 to 15 minutes until the crust is brown and crispy