Remove crust from bread. Lay bread on counter and spread a thin layer of Nutella
on each slice. Slice enough banana to cover two of the slices of bread. Drizzle
a small amount of honey on the other two pieces of bread. Place honey-drizzled pieces
of bread on top of the banana slices, honey side down, to make two sandwiches.
In a shallow bowl, gently whip, by hand, the eggs, milk, vanilla extract, rum,
cinnamon, nutmeg and salt.
Heat skillet to medium heat, around 350 degrees F. Add butter. When the butter
begins to sizzle, dip one sandwich at a time into batter and place into skillet.
Cook until golden brown, 3 to 4 minutes on each side.
Cut each sandwich in half diagonally and place decoratively on plate. Top with
confectioners' sugar, if desired.