A covering of wafer-thin strudel pastry ensures that fruit such as apples, sour cherries and apricots retain their juice and flavour when cooked.
Apples supply vitamin C as well as some potassium. It's best to eat the peel to get the full measure of fibre. Some of the fibre in apples is pectin, which is thought to help lower blood cholesterol. It is best to store apples in the refrigerator because they tend to deteriorate quickly at room temperature; the flesh turns mushy and the apples lose some of their vitamin content.