Dried oyster lettuce cups Recipe

Name: Dried oyster lettuce cups Recipe
Ingredients: 4 ounces (1 1/3 cups) dried oysters; 4 dried shiitake mushrooms; Pinch each salt and sugar; 1/3 cup diced lean pork; 1 teaspoon rice wine or sherry, divided; 2 teaspoons cornstarch, divided; 2 teaspoons soy sauce, divided; 1/3 cup diced bamboo shoots, preferably fresh; 2 tablespoons plus 1 1/2 teaspoons oil, divided; 1 teaspoon grated ginger; 2 green onions, sliced; 1/2 cup finely diced carrot; 2/3 cup thinly sliced snow peas; 1/3 cup diced water chestnuts (about 6 whole pieces), preferably fresh; 1/2 cup finely diced Chinese barbecued pork (char siu); 3 tablespoons diced Sichuan preserved vegetable; 1 teaspoon oyster sauce; 1/2 teaspoon sesame oil; 1 tablespoon minced cilantro; 1 head iceberg lettuce, cleaned, separated into leaves and trimmed into cups