Chinese Hamburger-Pork Belly Buns

For the dough (Mo or bread)

• 200 g plain flour
• pinch of salt
• 1 tbsp. vegetable cooking oil
• 100 ml water , note 1
• 3/4 tsp. instant yeast

The Meat Filling

• 800 g pork belly , note 1
• 1/2 cup crystal sugar
• 2 large onion ,cut into sections
• 2 tbsp. light soy sauce
• 1.5 tbsp. dark soy sauce
• 1 inch root ginger , divided
• Water or stock as needed
• 1 tbsp. Shaoxing cooking wine
• 1 tbsp. salt
• 4 cloves garlic

Spices

• 1 tsp. Sichuan peppercorn
• 2 star anises
• 1 small cinnamon bark
• 4 ~6 cloves
• 2 bay leaves
• 1 tsp. fennel seeds
• 1 dried chili pepper
• 1 piece of dried tangerine peel
• 1 tsp. whole white pepper
• 1 chunk galangal ,optional
• 1 fructus amomi , optional (砂仁)
• 2 pieces of dried ginger , optional
• 1 piece of sand ginger , optional
• 1 nutmeg , optional (豆蔻)
• 1 Tsaoko Amomum ,optional (草果)

Other ingredients and seasonings

• Coriander , optional