Heavenly Silver Thread Buns (Yin Si Juan)

🌍 Cuisine: Chinese
🏷️ Category: Breads & Bakery
⏱️ Prep: 90 minutes
🍳 Cook: 15 minutes
👥 Serves: 8 buns

📝 About This Recipe

A masterpiece of Chinese pastry, the Silver Thread Bun is a marvel of texture, featuring a core of hundreds of delicate, hand-pulled 'threads' encased in a pillowy-soft outer dough. Originating from Northern China, these buns offer a subtle sweetness and a mesmerizing structural contrast that is as beautiful to look at as it is to eat. Whether steamed to a snowy white or deep-fried for a golden crunch, they represent the pinnacle of traditional dim sum craftsmanship.

🥗 Ingredients

The Starter Dough (Tangzhong Method)

  • 2 tablespoons All-purpose flour
  • 1/3 cup Water

Main Dough

  • 3 cups All-purpose flour (sifted)
  • 3/4 cup Warm milk (approx. 110°F)
  • 1/4 cup Granulated sugar
  • 1.5 teaspoons Instant yeast
  • 1 teaspoon Baking powder
  • 1 tablespoon Vegetable oil (neutral flavor)
  • 1/4 teaspoon Salt

Thread Coating & Assembly

  • 3 tablespoons Vegetable oil (for brushing)
  • 1 tablespoon Cornstarch (to prevent sticking)
  • 1 tablespoon Granulated sugar (for dusting the threads)

👨‍🍳 Instructions

  1. 1

    Make the starter: Whisk 2 tbsp flour and 1/3 cup water in a small saucepan over medium-low heat. Stir constantly until it thickens into a translucent paste. Remove from heat and let cool to room temperature.

  2. 2

    Activate yeast: In a small bowl, combine warm milk, 1 tsp of the sugar, and the instant yeast. Let sit for 5-10 minutes until foamy.

  3. 3

    Mix the dough: In a large bowl or stand mixer, combine the remaining flour, sugar, baking powder, and salt. Add the yeast mixture, the cooled starter paste, and 1 tbsp of oil.

  4. 4

    Knead: Knead the dough for about 10 minutes by hand or 6-8 minutes in a mixer until it is perfectly smooth, elastic, and no longer sticks to your hands. The dough should be soft but firm enough to hold its shape.

  5. 5

    First proof: Place the dough in a lightly oiled bowl, cover with a damp cloth, and let it rise in a warm spot for 1 hour or until doubled in size.

  6. 6

    Divide: Punch down the dough to release air. Divide the dough into two portions: 1/3 of the dough will be for the outer wrappers, and 2/3 will be for the inner 'threads'.

  7. 7

    Prepare threads: Roll the larger portion of dough into a thin rectangular sheet (about 1/8 inch thick). Brush the surface generously with oil and sprinkle lightly with a mix of cornstarch and sugar.

  8. 8

    Cut threads: Fold the sheet into thirds (like a letter) and use a sharp knife or a pasta cutter to slice the dough into very thin, uniform strips (the 'threads').

  9. 9

    Bundle: Divide these threads into 8 equal bundles. Gently stretch each bundle slightly to elongate the threads, then set aside.

  10. 10

    Prepare wrappers: Divide the remaining 1/3 of the dough into 8 small balls. Roll each ball into a thin oval shape, large enough to encase a bundle of threads.

  11. 11

    Assemble: Place a thread bundle in the center of an oval wrapper. Fold the sides of the wrapper over the threads and seal the ends tightly, creating a smooth, oblong log shape. Repeat for all 8 buns.

  12. 12

    Second proof: Place the buns on individual squares of parchment paper in a steamer basket. Cover and let proof for another 20-30 minutes until they look light and puffy.

  13. 13

    Steam: Bring water to a boil in the steamer base. Place the steamer baskets over the water and steam on medium-high heat for 12-15 minutes.

  14. 14

    Rest: Turn off the heat but do not open the lid immediately. Let the buns sit for 5 minutes to prevent them from collapsing due to sudden temperature changes.

  15. 15

    Finish: Serve warm. For an extra treat, you can deep-fry the steamed buns for 1-2 minutes until the exterior is golden and crispy.

💡 Chef's Tips

Ensure your yeast is fresh; if it doesn't foam in step 2, start over with new yeast. When cutting the threads, use a very sharp knife or a pizza cutter to ensure clean edges that don't fuse back together. Don't skip the 5-minute rest after steaming; this 'tempering' phase ensures the buns stay fluffy and smooth. If the dough is too sticky, add flour 1 tablespoon at a time; if too dry, add a teaspoon of milk. For the smoothest exterior, roll the wrapper dough firmly to remove all air bubbles before encasing the threads.

🍽️ Serving Suggestions

Serve alongside condensed milk for dipping to enhance the subtle sweetness. Pair with a hot pot of Jasmine or Oolong tea to cut through the richness. Serve as a side dish for savory Braised Pork Belly (Hong Shao Rou). Deep-fry the leftover buns the next morning and serve with congee for breakfast. Lightly dust with powdered sugar for a more dessert-like presentation.