Step #1 In a mixing bowl, beat the egg whites, flour, milk, butter & salt until smooth.
Step #2 Pour into an 8-in.
Step #3 square baking dish coated with nonstick cooking spray.
Step #4 Bake at 400F for 20-25 mins or until golden & puffed.
Step #5 Meanwhile, in a small saucepan, mix the apples, jelly, water & cinnamon; heat over low heat/flame until jelly is melted & mixture is heated through.