Oven-baked spring rolls

Ingredients

• 2 dried shiitake mushrooms
• 2 teaspoon peanut oil
• 1 green onion, sliced thinly
• 1 clove garlic, crushed
• 250 gram pork mince
• 2 tablespoon finely chopped water chestnuts
• 50 gram chinese cabbage, shredded finely
• 1 teaspoon fish sauce
• 2 teaspoon light soy sauce
• 1 tablespoon oyster sauce
• 24 spring roll wrappers
• 1 egg, beaten lightly
• Dipping sauce
• 2 tablespoon chinese red wine vinegar
• 2 tablespoon sweet chilli sauce