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Steamed Char Siu Bao (Chinese BBQ Pork Buns)

A quintessential Chinese dim sum dish, these steamed Chinese BBQ pork buns (Char siu bao) yield a light dough with a delicious BBQ pork filling. The buns have cracks and fissures, which are characteristic of restaurant-style bbq pork buns.
Course Dim Sum
Cuisine Asian, Chinese
Prep Time 1 hour
Cook Time 22 minutes
Resting Time 12 hours
Total Time 13 hours 22 minutes
Servings 10
Calories 173kcal
Author Michelle

Ingredients

Roasted BBQ pork filling:

  • 75 g white onion diced
  • 5 g garlic (about 2 cloves) minced
  • 150 g char siu roasted BBQ pork diced
  • 2 g Chinese 5-spice powder
  • 3 ml Chinese rose wine or dry sherry
  • 7 ml hoisin sauce
  • 7 ml ketchup
  • 2 g cornstarch
  • 2 g all-purpose flour
  • 60-85 ml cold water
  • 2 ml sesame oil

For the dough:

Starter:

  • 113 g cake flour
  • 2 g active dry yeast
  • 15 g granulated sugar
  • 62 g room temperature water

Dough:

  • starter dough from above
  • 2 g baking ammonia dissolved in 2 teaspoon of water
  • a few drops lye water
  • 60 g granulated sugar
  • 75 g cake flour
  • 40 g wheat starch
  • 10 g baking powder
  • 20 ml whole milk
  • 27 ml coconut oil or vegetable oil
  • 15 ml white vinegar

For steaming:

  • water
  • 1 tablespoon white vinegar

Instructions

Cook the BBQ pork filling:

  • In a large frying pan, sauté the onions and garlic until translucent, about 3-4 minutes over medium heat.
  • Add in the diced BBQ pork and continue to sauté until the pork is heated through. 
  • Next, add in 5-spice powder, Chinese rose wine, hoisin sauce, and ketchup.
  • Prepare the cornstarch and flour slurry by adding 1 teaspoon cornstarch and 1 teaspoon flour into a small bowl with 4-6 tablespoon cold water. Mix with a spoon until the starch and flour dissolves.
  • Pour the cornstarch slurry into the pot and stir to coat the BBQ pork mixture. Bring to a boil and lower the heat.
  • The mixture will begin to thicken and become glossy.
  • Remove the BBQ pork filling from heat, stir in a little sesame oil, and transfer to a clean bowl. Cover with a lid and let cool.
  • Refrigerate the pork filling for at least 4-6 hours, or overnight.
  • Use a small ice cream scoop to divide the BBQ pork mixture into 10 portions, about 25-30g each.
  • Place the scoops onto a plate and chill in the fridge until just about ready to assemble. (Don't keep it at room temperature).

Make the starter: (the night before)

  • In a small bowl, add in 113g cake flour, 2g of active dry yeast, 15g of sugar and 62g water.
  • Knead together until it forms a dough. (It will be on the drier side).
  • Cover with plastic wrap and leave at room temperature overnight.

Make the dough:

  • Transfer the starter mixture from the night before in to a larger bowl.
  • Add 2g baking ammonia dissolved in 2 teaspoon of water + a few drops of lye water. (Be careful, it will smell!)
  • Knead in the 60g granulated sugar, until it dissolves a little.
  • Add in the cake flour, wheat starch and baking powder.
  • Add in the milk, coconut oil, and vinegar.
  • Knead until the dough comes together.
  • Cover the bowl with a plate or plastic wrap and leave it to rest for about 30 minutes in a warm location.
  • When the dough shows some bubbles and has risen a little, lightly dust the work surface with some wheat starch and divide the dough into 10 equal portions. (About 45-50g each).
  • Roll the portioned dough into a flat disc and place a scoop of char siu BBQ pork filling (about 25-30g) in the centre.
  • Gather the dough up in 3 places, forming a triangular shape (like a samosa).
  • Gently press the centre down, and gather the sides up, forming a "bulb/tulip."
  • Pinch the 3 seams together on the sides.
  • Place the bun onto a piece of parchment paper or muffin liner.
  • Repeat with the remaining dough and filling.
  • Cover the buns with some plastic wrap and leave to rest in a warm location for about 20-30 minutes.

Steam the buns:

  • Fill a large wok or pot (that can fit a steaming rack) with water and add 1 tablespoon white vinegar to it.
  • Bring the water to a boil over high heat.
  • Once the water is vigorously boiling, place 3-4 buns onto the steaming rack and transfer it to the pot or wok.
  • Cover with a lid and ensure that any steam vents are covered (I used a wet cloth), and place a kitchen towel over the rim of the lid, to help trap in as much steam.
  • Steam the buns for 12-13 minutes, until buns have formed cracks.
  • Remove the buns and repeat with the remaining buns.
  • The buns are best served immediately, hot and steamy.

Video

Nutrition

Calories: 173kcal | Carbohydrates: 23g | Protein: 5g | Fat: 7g | Saturated Fat: 4g | Cholesterol: 11mg | Sodium: 135mg | Potassium: 86mg | Fiber: 1g | Sugar: 8g | Vitamin A: 9IU | Vitamin C: 1mg | Calcium: 71mg | Iron: 1mg