Method:

PREPARATION: 

Boil cabbage and celery until very tender. Drain and squeeze out excess water. Shred very fine and set aside to drain further. Parboil shrimp and fry or bake pork. Mince both. Shred water chestnuts and bamboo shoots. Mix all ingredients but egg together. Beat egg. Wrap filling in egg roll skins and seal with egg. Make 10.

COOKING: 

Heat oil in wok or deep fat fryer to 375 degrees and drop in egg rolls. When skin turns light golden brown, remove from oil and drain. When cool, drop again into hot oil and fry until golden brown. 

The two−stage deep frying method is actually a professional Chinese chefs' secret. It assures that the inside will be moist and not overcooked (as anything overcooked becomes dry) and the outside will be crisp.