Preheat oven to 400 degrees.
Peel and dice 4 apples into small pieces.
In a medium sized saucepan, add apples, 2 tbs butter, 3/4 cup brown sugar, 1 tsp cinnamon, and pinch of salt. Cook on medium heat, 3 to 5 minutes until apples are softened.
Add in 1 tbs cornstarch and stir over medium heat an additional 5 minutes or until caramel sauce has thickened.
Unfold and roll out one of the Pepperidge Farm® Puff Pastry sheets. With a pizza cutter, cut into 4 squares. Place 1/4cup of apple mixture in center of each square. Fold over the square into a triangle. Pinch ends and seal with a fork.
Repeat with the second Pepperidge Farm® Puff Pastry sheet.
In small bowl, combine egg and 1 tbs water. Beat well to make egg wash.
Brush tops of pastries lightly with egg wash.
Combine 1/4 tsp cinnamon and 1 tbs sugar. Sprinkle cinnamon and sugar mixture over the tops of pastries.
Bake for 20 minutes or until golden brown.
Allow them to cool, then garnish with caramel sauce and serve.