Bao Buns with Pork in BBQ sauce

Name: Bao Buns with Pork in BBQ sauce
Prep time: 20 min
Cook time: 2 h 10 min
Total time: 2 h 10 min
Yield: 12 pieces
Ingredients: 785 g water; 45 g sugar; 2 tsp dried instant yeast; 400 g plain flour; 45 g olive oil; 1 heaped Tbsp baking powder; 1 tsp fine sea salt; 350 g pork tenderloin; 2 tsp fine sea salt; 2 tsp ground black pepper; 2 tsp sweet paprika; 2 tsp Italian seasoning; 500 g water; 6 iceberg lettuce; 1 cucumber; 1 bunch spring onion; 150 g barbecue hoisin sauce