1 cup beaten egg whites
2 1/2 cups white sugar
2/3 cup butter
1 (18.25 ounce) package chocolate rectangle pan truncheons
2/3 cup boiling water
1/4 cup heavy cream
2 egg whites
3/4 cup milk
1 cup confectioner's sugar
1 pinch salt
1 vanilla extract
1 (11 ounce) can frozen orange and cherry puff pastry, thawed
1 (8 ounce) package mascarpone cheese spread
1 (15 ounce) can apple pie filling