Bao with Pulled Mushroom in BBQ Sauce

Name: Bao with Pulled Mushroom in BBQ Sauce
Prep time: 10 min
Cook time: 1 h 15 min
Total time: 1 h 15 min
Yield: 8 pieces
Ingredients: 5 ½ oz whole milk; 1 tsp sugar; 1 tsp active dry yeast; olive oil; 7 ½ oz all-purpose flour; ½ tsp baking powder; 2 oz red onion; 2 oz rice vinegar; 1 ½ tsp sugar; 1 ½ tsp salt; 3 green onions; 1 fresh red chili; ½ oz fresh ginger; 3 garlic cloves; 20 oz olive oil; 16 oz fresh king oyster mushrooms; 2 ½ oz barbecue sauce; 1 ½ oz soy sauce; 21 oz water; cilantro leaves; sesame seeds