Mushroom-filled Buns

Dough

• 40 g icing sugar
• 500 g plain flour, plus extra for dusting
• 50 g olive oil
• 240 g water
• ½ tsp fine sea salt

Filling

• 400 g celery stalks, cut in pieces
• 60 g fresh bamboo shoots
  hoặc fresh beansprouts
• 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

Assembly

• honey, for coating
• sesame seeds, for sprinkling