Bao with Celeriac

Ingredients

• 465g of plain flour
• 45g of caster sugar
• 7g of fast-action dried yeast
• 120g of water
• 120g of oat milk, or other plant milk
• 1 tbsp of vegetable oil, as needed
• spring onions, roughly chopped, for garnish
• bird's eye chillies, thinly sliced on a bias, for garnish
• coriander leaves, for garnish
• 1 celeriac
• olive oil, as needed
• salt
• freshly ground black pepper
• 75g of light soy sauce
• 25g of water
• 75g of soft brown sugar
• 25g of mirin
• 5g of sesame oil
• 5g of rice wine vinegar
• 1/4 tsp fermented chilli sauce, ideally homemade
• 5g of fresh ginger, grated
• 5g of garlic cloves, grated
• 12g of spring onions
• 1 pinch of freshly ground black pepper
• 1 pinch of chilli flakes, such as gochugaru