Ever since I shared my success with the Pork Jerky and Pork Floss Bread, I’ve been completely obsessed with pork floss. Today, while walking past a “Bao Shi Fu” (a famous Chinese bakery chain known for these cakes), I saw the usual massive line snaking out the door. I remembered I still had some leftover floss at home from my last bulk buy, so I decided: why wait in line when I can make Meat Floss Cakes (Rou Song Xiao Bei) right in my own kitchen?
To be honest, after calculating the cost of making these at home, I don’t think I dare buy them from the bakery again—homemade is so much more affordable and fresh!
Why This Recipe Works
This recipe recreates the magic of the trendy “Bao Shi Fu” cakes but adapts it for the home baker.
- Texture Contrast: We use a chiffon-style batter which creates an incredibly airy, cloud-like sponge that contrasts perfectly with the crunchy seaweed pork floss.
- Balanced Flavor: The key is the “Salad Sauce” (a sweet mayonnaise), which bridges the gap between the sweet cake and the savory meat floss.
- Beginner Friendly: Unlike a full-sized cake that requires long baking times and distinct slicing, these are piped into small rounds, making them bake faster and easier to handle.
About the Author & Recipe Development
I’m Lin, a Sichuan-born chef with over a decade of experience in professional kitchens. While my roots are in spicy Sichuan cuisine, my time in culinary school involved rigorous training in pastry arts, specifically the science of aeration in sponge cakes.
For this recipe, I tested the batter consistency multiple times. Many home recipes result in a dense, rubbery puck. I found that separating the eggs and treating this like a classic Fluffy Matcha Chiffon Cake (using the meringue method) ensures the cakes remain soft enough to absorb the sauce without disintegrating. I also adjusted the baking temperature to 350°F (180°C) to ensure a golden color without drying out the interior.
What are Meat Floss Cakes (Rou Song Xiao Bei)?
Rou Song Xiao Bei (肉松小贝) translates roughly to “Little Meat Floss Shells.” They are essentially two small chiffon cake rounds sandwiched together with a sweet mayonnaise dressing, then slathered in more dressing and rolled in savory pork floss (meat wool) and crisp seaweed. They are the ultimate savory-sweet treat, exploding with umami.
Key Ingredients & Substitutions
- Low Protein Flour (Cake Flour): You need 70g. This is crucial for a tender crumb. If you only have All-Purpose flour, the cakes will be tough. Substitute: You can make your own by removing 1 tablespoon of AP flour from a cup and replacing it with cornstarch.
- Eggs: 3 large eggs. We will separate the yolks and whites. Fresh eggs whip up better.
- Pork Floss (Rousong): You need about 300g. I recommend a variety that includes sesame and seaweed for extra texture. You can buy this at Asian markets, or if you are feeling adventurous, try my Homemade Meat Floss or the Microwave Meat Floss for a quick version.
- Salad Dressing: In the Chinese context, “Salad Dressing” (Shala Jiang) almost always refers to a sweetened mayonnaise, similar to Kewpie mayo but sometimes sweeter. Note: If using standard American mayo (like Hellmann’s), mix in a little condensed milk to get the authentic flavor profile.
- Lemon Juice: Used to stabilize the eggs and remove any “eggy” smell. You can substitute with cream of tartar or white vinegar.
Ingredients
- 70g Low gluten flour (Cake flour)
- 3 Large Eggs (separated)
- 55g Milk (approx. 1/4 cup)
- 50g Vegetable oil (neutral flavor)
- 60g White sugar (approx. 1/3 cup)
- A few drops Lemon juice
- 300g Meat floss with seaweed (Pork floss)
- As needed Salad dressing (Sweet mayonnaise/Kewpie)
Recipe Notes Before We Begin
- Preheat Early: Ovens take time. Preheat to 350°F (180°C) before you start whipping the eggs.
- Clean Equipment: Ensure your mixing bowl for egg whites is completely free of oil or water, or the meringue won’t reach stiff peaks.
- Piping Tip: You don’t need a fancy metal tip; just snip a round hole about 1-inch wide at the end of a disposable piping bag.
How to Make Meat Floss Cakes
Step 1: Whip the Meringue
First, separate the egg whites and egg yolks into two clean bowls. Add the sugar to the egg whites in three separate additions while beating with an electric mixer. Whip until the whites form stiff peaks (when you lift the beater, the tip should stand straight up).
Step 2: Mix the Yolk Batter
In the bowl with the yolks, add the milk and vegetable oil. Whisk thoroughly until the oil and milk are fully emulsified and the mixture is uniform.
Step 3: Combine Flour and Yolks
Sift the cake flour into the yolk mixture. Add a few drops of lemon juice here (this helps cut the richness and smell of the yolk). Whisk in a “Z” motion or stir gently until just combined and smooth. Do not overmix, or you will develop gluten and the cake will be tough.
Step 4: Fold the Batters
Take 1/3 of the whipped egg whites and add them to the yolk paste. Fold gently using a spatula. Then, pour this mixture back into the remaining egg whites. Fold gently but thoroughly until the color is uniform.
Technique Tip: Use a “J” motion—cut down the middle, sweep the bottom, and fold over. This prevents deflating the air bubbles.
Step 5: Pipe the Cakes
Transfer the batter into a piping bag. Line a baking sheet with parchment paper (oil paper). Pipe the batter into evenly sized round circles (about 2-3 inches in diameter). Leave space between them as they will expand.
Step 6: Bake
Place in the preheated oven at 350°F (180°C). Bake for approximately 15 minutes. Note: Every oven is different. Watch for a golden brown top and a springy touch.
Step 7: Assembly (The Fun Part!)
Once the cake rounds have cooled on a wire rack, take one cake round and squeeze a layer of salad dressing (mayo) on the flat side. Take another cake round and sandwich them together.
Step 8: Coat with Floss
Squeeze more salad dressing all over the exterior of the “cake sandwich.” Spread it evenly. Finally, roll the entire cake in the Pork Floss Buns topping (the seaweed meat floss) until fully coated.
Serve immediately and enjoy the fluffy, savory-sweet goodness!
Authoritative References
For more information on the science behind ingredients used in this recipe:
- Understanding the role of acid (lemon juice) in egg foams: The Science of Egg Foams – Exploratorium
- Food Safety regarding egg handling: Egg Safety – FDA
- Differences in flour protein content: Flour Guide – King Arthur Baking
Common Mistakes When Making Meat Floss Cakes
- The “Deflated” Cake: If your cakes come out flat like pancakes, you likely over-mixed the batter at Step 4, knocking out the air bubbles. Fold gently!
- The “Wet” Interior: If the cakes sink in the middle after cooling, they may be underbaked. Ensure your oven is truly at 180°C.
- Salty Flavor: Using Western sandwich mayonnaise (like Best Foods) instead of Asian salad dressing/Kewpie will result in a salty cake. If you don’t have sweet mayo, mix some sugar or condensed milk into your regular mayo.
Serving Suggestions
These are best eaten fresh, but they store well in the fridge. They pair beautifully with:
- A warm glass of soy milk.
- Steamed Egg with Milk and Pork Floss for a floss-themed brunch.
- If you have leftover flour and want another baking project, try my Chinese Date Cake or the seasonal Pumpkin Chestnut Pound Cake.
Nutrition Information (Estimate)
(Disclaimer: Nutrition information is calculated using an ingredient database and should be considered an estimate. Garnishes and optional ingredients are not included.)
- Serving Size: 1 Cake (approx)
- Calories: 320 kcal
- Fat: 18g
- Carbohydrates: 28g
- Protein: 12g
- Sodium: 450mg
- Sugar: 12g
Allergen Warning: Contains Eggs, Wheat (Gluten), Soy (in the floss/mayo), and Milk.
Meat Floss Cakes (Rou Song Xiao Bei)
Equipment
- Electric Mixer
- Piping Bag
- Baking Sheet
- Oven
Ingredients
Cake Batter
- 3 large eggs separated into yolks and whites
- 60 g white sugar approx 1/3 cup
- 55 g milk approx 1/4 cup
- 50 g vegetable oil
- 70 g cake flour low gluten flour, sifted
- 3 drops lemon juice fresh
Assembly
- 300 g pork floss with seaweed meat floss
- salad dressing sweet mayonnaise or Kewpie, as needed
Instructions
- Preheat your oven to 180°C (350°F). Separate the egg whites and egg yolks. In a clean bowl, beat the egg whites, adding the sugar in three batches, until stiff peaks form.
- In a separate bowl, place the egg yolks. Add the milk and vegetable oil and whisk until fully emulsified and uniform.
- Sift the flour into the yolk mixture. Add the lemon juice. Stir gently in a Z-motion until just combined and smooth. Do not overmix.
- Take 1/3 of the egg whites and fold into the yolk batter. Pour this mixture back into the remaining egg whites and fold gently until uniform.
- Transfer the batter to a piping bag. Pipe uniform round circles onto a baking tray lined with parchment paper.
- Bake at 180°C (350°F) for 15 minutes or until golden brown. Let cool completely.
- To assemble: Take one cooled cake round, squeeze salad dressing on the flat side, and sandwich with another cake round.
- Squeeze salad dressing all over the exterior of the cake sandwich. Roll generously in the pork floss/seaweed mixture until fully coated.
Notes
Storage: Store in an airtight container in the refrigerator for up to 3 days.
Nutrition Disclaimer: Nutrition information is calculated using an ingredient database and should be considered an estimate. Garnishes and optional ingredients are not included.
Allergens: Wheat, Eggs, Soy, Milk.
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