Spread one side of each slice of bread with a teaspoon of jam.
On top of two slices of bread, on the jam side, spread each with ½ tablespoon of cream cheese. Top each with one slice of cheese and some apple slices. Place remaining 2 slices, jam side inside, on top of each sandwich.
In a bowl, add the egg white and vanilla. Whip together with a fork. Dip both sandwiches in the egg whites, coating both sides.
Spray a medium nonstick pan or skillet with cooking spray. Melt 2 teaspoons of reduced-fat butter in the pan and swirl around the bottom of the pan. Add the dipped sandwiches to the pan. Grill for about 2 -3 minutes until golden brown, turn-over and cook the underside until golden brown and thoroughly cooked.
Remove cooked sandwiches from pan and place on small plates. Spread the top of each sandwich with 1 teaspoon of reduced-fat butter or spread. Sprinkle each top with a little cinnamon and sugar mixture.
Cut each sandwich in half and serve with a fork and knife and any extra apple slices on the side.