Mushroom-filled Buns

Name: Mushroom-filled Buns
Prep time: 30 min
Cook time: 1 h 20 min
Total time: 1 h 20 min
Yield: 18 pieces
Ingredients: 40 g icing sugar; 500 g plain flour; 50 g olive oil; 240 g water; ½ tsp fine sea salt; 400 g celery stalks; 60 g fresh bamboo shoots; 500 g fresh king oyster mushrooms; 50 g olive oil; 40 g soy sauce; 10 g sugar; ½ tsp ground allspice; 1 tsp ground black pepper; 20 g cornflour; honey; sesame seeds