Take the ciabatta loaf and slice it into 4 thick, equal slices. Remove the heel and set it aside to dip in pasta sauce later! Then gently slice an opening through the middle of each slice to make a large pocket for the filling. Stuff each slice with 1/4 of the prosciutto and a slice of the mozzarella. Then combine the eggs, milk, cheese, salt, pepper, basil and oregano in a large mixing bowl and whisk it all together. Soak the stuffed bread slices in that mixture for 5 minutes on each side.

While the bread finishes soaking in the custard, pre-heat an electric griddle to 350 or a large griddle pan over medium high heat. Grease the griddle with the butter. Take the bread right out of the custard and onto the griddle to cook for 3 minutes on each side. Then cook them for another 2 minutes on each side. If necessary, reduce the heat and keep flipping the toast every couple of minutes until the mozzarella is melted without burning the outside. Serve the savory French toast immediately and enjoy!