BBC Food - Recipes - Chicken and vegetable spring rolls

Ingredients

• 1 tbsp groundnut oil, plus extra for deep-frying
• 200g/7oz skinless chicken breast fillets, chopped into small pea-sized pieces
• 4 dried Chinese mushrooms , soaked in hot water for 20 minutes, drained and finely chopped
• 1 tbsp light soy sauce
• 1 tbsp five-spice powder
• 1 tsp grated fresh root ginger
• 75g/3oz beansprouts
• 2 large spring onions , finely sliced lengthways
• 1 small carrot , julienned
• 1 tbsp oyster sauce
• ½ tbsp light soy sauce
• sea salt and ground white pepper
• 16 ready-made large spring roll wrappers , thawed if frozen (available from Asian supermarkets)
• 1 egg yolk , beaten