Spring Rolls with Pork and Glass Noodles

Name: Spring Rolls with Pork and Glass Noodles
Ingredients: 2 ounces glass (cellophane) noodles; 3/4 pound ground pork; 2 tablespoons oyster sauce; 1 teaspoon sugar; 1 1/2 teaspoons kosher salt; 1/2 teaspoon freshly ground pepper; 1/2 cup julienned carrots (about 1 small); 1/2 cup finely shredded green cabbage; 1/2 cup thinly sliced yellow onion (1/2 small); 1/2 cup julienned taro or potato; Vegetable oil, for frying; Twelve 7-inch square spring roll wrappers; 1 large egg, lightly beaten; Chinese hot mustard, for dipping; Sweet chile sauce, for dipping