In a pan or toaster, toast your two slices of bread and set aside.
2 slices bread
In a medium heat pot, melt down your butter, then add flour. Stir well to cook out the raw flour flavor.
¼ cup unsalted butter, ¼ cup flour
Add milk into the pot and stir 10 seconds.
1 cup milk
Season with dijon mustard, horseradish, garlic powder, chives, and salt.
1 tbsp dijon mustard, 1 tbsp horseradish, 1 tsp salt, 1 tsp garlic powder, chives
Continue stirring until it reaches your desired consistency. If it is too thick, add more milk, too thin, just cook and stir longer.
Add a layer of the bechamel on the bottom of your toast.
Add your slices of ham. I use mortadella.
5 slices ham
Top the sandwich with a layer of shredded gruyere cheese.
1 cup gruyere cheese
Top with the second slice of bread, add another layer of bechamel on top and finish with a final layer of cheese.
Place the sandwich into the air fryer lined with parchment paper until the cheese is fully melted. 375F for 10 minutes.
Top with more chives and enjoy.
chives