Build your sandwiches like you'd build a traditional grilled cheese.
Pour the Pork Panko into one bowl.
Add the eggs, milk, and spices to another bowl and beat to fully combine.
Dip the sandwiches in the egg custard before lightly coating them with the Pork Panko.
Add the butter to the skillet and melt. Once melted add your sandwiches.
Allow them to cook for 3 minutes on one side before flipping. When you see the cheese begin to melt transfer them to a plate, about 3 minutes per side.