Hong Kong Gai Daan Zai: The Ultimate Crispy Bubble Waffle

🌍 Cuisine: Cantonese
🏷️ Category: Dessert
⏱️ Prep: 15 minutes
🍳 Cook: 25-30 minutes
πŸ‘₯ Serves: 4 waffles

πŸ“ About This Recipe

Originating from the bustling streets of Hong Kong in the 1950s, these 'eggettes' are a sensory masterpiece of golden, spherical bubbles connected by a thin, crispy webbing. Each bite offers a delightful contrast between the crunchy exterior and the chewy, custard-like center. This recipe captures that nostalgic vanilla-malt aroma that lures crowds through night markets, elevated with professional techniques for the perfect structural snap.

πŸ₯— Ingredients

Dry Ingredients

  • 140 grams All-purpose flour (sifted)
  • 2 tablespoons Cornstarch (provides the signature crunch)
  • 1 tablespoon Custard powder (for color and deep vanilla flavor)
  • 1.5 teaspoons Baking powder (ensures a light, airy rise)
  • 1 tablespoon Tapioca starch (gives the center a chewy 'mochi' texture)

Wet Ingredients

  • 2 pieces Large eggs (at room temperature)
  • 100 grams Granulated sugar (superfine works best)
  • 2 tablespoons Evaporated milk (adds a rich, creamy depth)
  • 140 ml Water (filtered)
  • 2 tablespoons Vegetable oil (neutral flavor like canola or grapeseed)
  • 1 teaspoon Vanilla extract (pure extract preferred)

Optional Toppings

  • 1 tablespoon Powdered sugar (for dusting)
  • 2 tablespoons Sweetened condensed milk (for drizzling)

πŸ‘¨β€πŸ³ Instructions

  1. 1

    In a large mixing bowl, whisk together the sifted all-purpose flour, cornstarch, tapioca starch, custard powder, and baking powder until thoroughly combined.

  2. 2

    In a separate medium bowl, beat the 2 eggs and granulated sugar together until the mixture is pale and slightly frothy.

  3. 3

    Slowly whisk the evaporated milk, water, and vanilla extract into the egg mixture until smooth.

  4. 4

    Gradually pour the wet ingredients into the dry ingredients. Whisk gently from the center outward to avoid lumps, ensuring a silky, thin batter.

  5. 5

    Stir in the vegetable oil until fully incorporated. This fat is crucial for a crisp release from the pan.

  6. 6

    Strain the batter through a fine-mesh sieve into a clean bowl to remove any tiny clumps of flour; this ensures a professional finish.

  7. 7

    Cover the batter and let it rest in the refrigerator for at least 30 minutes. This allows the starches to hydrate and the air bubbles to settle for a better texture.

  8. 8

    Preheat your bubble waffle iron (electric or stovetop) to medium-high heat. If using a stovetop version, heat both sides evenly.

  9. 9

    Lightly brush both sides of the iron with a tiny bit of oil, even if it is non-stick, to guarantee a golden sheen.

  10. 10

    Pour approximately 3/4 cup of batter into the center of the iron, starting from the middle and letting it flow to the edges.

  11. 11

    Close the iron and immediately flip it over. This ensures the batter flows into the 'bubbles' before it sets, creating full, round spheres.

  12. 12

    Cook for 2-3 minutes on each side. Open slightly to check for a deep golden brown color.

  13. 13

    Carefully remove the waffle using a spatula or wooden skewer. It will be soft at firstβ€”this is normal!

  14. 14

    Immediately place the waffle in front of a small fan or wave it gently in the air for 30 seconds. This 'shock' creates the iconic crispy shell.

  15. 15

    Roll the waffle into a cone shape while still warm and place it in a cup to hold its form for serving.

πŸ’‘ Chef's Tips

Resting the batter is the 'secret' to a smooth, consistent texture; never skip the 30-minute chill time. If your waffles are too soft, replace 10g of water with 10g of additional vegetable oil for a crispier fry. Always flip the iron immediately after closingβ€”if you wait even 10 seconds, the bubbles won't be perfectly round. Use a wire rack to cool the waffles if not eating immediately; stacking them while hot will make them soggy from steam. To clean a stovetop iron, use a soft brush while it's still warm to remove any stray bits of sugar or batter.

🍽️ Serving Suggestions

Serve warm in a paper cone with a scoop of black sesame or matcha ice cream nestled in the center. Drizzle generously with sweetened condensed milk and a sprinkle of toasted coconut flakes for a tropical twist. For a savory-sweet fusion, top with a drizzle of honey and a few cracks of sea salt. Pair with a classic Hong Kong-style Silk Stocking Milk Tea (hot or iced) for the authentic street food experience. Top with fresh sliced strawberries, whipped cream, and a dusting of cocoa powder for an elegant dessert plate.