On lightly floured surface, roll pastry to a 12" circle.Place in a 9" pie plate, turn under edge;flute.Drizzle apples with lemon juice.Toss with combined sugar, flour and cinnamon.Spoon into shell.Bake @ 450 degrees for 35 minutes.Reduce oven temperature to 350 degrees.Beat egg whites until soft peaks form.Gradually, add marshmallow cream, beating until stiff peaks form.Spread over apples, sealing to edge.Bake 10 minutes or until meringue is slightly browned.Cool and serve.