Ingredients (Egg Rolls):
2 tablespoons canola oil, plus more for frying the rolls
1 tablespoon finely chopped garlic
1 tablespoon finely chopped fresh ginger
2 serrano chiles, stemmed and finely chopped
½ cup hoisin sauce
2 cups thinly sliced shiitake mushroom caps
2 large leeks, white parts only, well washed and julienned
Salt and freshly ground black pepper
½ cup chopped fresh cilantro
1 cup chopped scallions, white and green parts
1 cup bean threads, soaked in warm water to cover until soft, 10-15 minutes, drained well and cut into 2-inch pieces
1 pound package lumpia/menlo wrappers or egg roll or spring roll wrappers
1 egg beaten with ¼ cup water, for egg wash

Mint Dipping Sauce (Makes about 1/4 cup):
1/4 cup fresh mint leaves cut into thin ribbons
1 teaspoon sugar
1/4 cup soy sauce
Juice of 1 lemon

In a small bowl, combine the mint, sugar, soy sauce, and lemon juice. Stir to dissolve the sugar and serve.