What is Char Siu?
Char Siu (叉烧) literally means fork roasted in Cantonese. It’s one of the most famous Chinese BBQ dishes – pork marinated in a sweet, savory glaze, then roasted until slightly charred, sticky, and caramelized. Its distinctive smokey edge comes from cooking it over an open flame or in huge ovens. But guess what? You don’t need a fancy setup anymore. You can make restaurant-caliber char siu in your own kitchen with a basic air fryer.

Char Siu
Ingredients
- Pork shoulder (or belly/loin)
- Red fermented bean curd (or miso paste as backup)
- Hoisin sauce
- Soy sauce (light & dark if possible)
- Shaoxing wine (or dry sherry)
- Honey (or maltose for traditional)
- Chinese five-spice powder
- Garlic, ginger
Why Make Char Siu in an Air Fryer?
- Convenience: There is no need to preheat a large oven.
- Speed: Without sacrificing flavor, air fryers reduce cooking times.
- Texture: The ideal char siu should have crispy edges and juicy, soft pork interior.
The Secret Ingredient: Red Fermented Bean Curd
Dad’s trick is this. Red fermented bean curd complements the crimson color of char siu and adds deep umami and saltiness. If you want that authentic restaurant-style flavor, it is a must. You can easily find it in Asian supermarkets, so don’t worry.
Choosing the Right Cut of Pork
- For the juiciest char siu, go with:
- Pork shoulder (butt) – tender with just the right fat content.
- For a richer, more luscious finish, use pork belly.
- Leaner but marginally less juicy is pork loin.
What is Maltose and Why It Matters for Glaze?
Maltose is a sticky, slow-dissolving sugar used in Chinese BBQ. It gives the pork that shiny, lacquered appearance. If you can’t find it, honey can be used in its stead, but maltose creates a thicker, smoother glaze.
Preparing the Marinade
Simply whisk everything together – sauces, bean curd, honey, and spices.It should smell strong and savory-sweet with a hint of spice. That’s when you know it’s ready.
Step-by-Step Cooking Process
Step 1: Prepare the Pork
Cut the pork into long strips (about 2 inches wide). This promotes even grilling and expands the marinade’s surface area.
Step 2: Mix the Marinade Sauce
Combine all the ingredients in a bowl until smooth.
Step 3: Marinate the Pork
Coat the pork strips, cover, and refrigerate at least 4 hours (overnight is best).
Step 4: Air Fry the Pork
Preheat air fryer to 180°C (350°F). Cook the pork in a single layer for 15 to 20 minutes, rotating it halfway through.
Step 5: Baste for the Perfect Glaze
After brushing with honey or maltose glaze, air fry for a further three to five minutes, or until caramelized and sticky.
Step 6: Rest, Slice & Serve
Let the pork sit for 5 minutes, then cut it into bite-sized pieces. As fluids re-distribute, each mouthful stays moist.
Expert Tips for Perfect Char Siu
- Before slicing, always let the pork rest.
- The glaze is what gives char siu its unique flavor, so don’t omit it.
- For a richer taste, marinate longer.
How to Cut and Serve Char Siu Pork
Slice across the grain into thin pieces. Serve over rice, with noodles, or tucked inside bao buns for the ultimate treat.
Storage and Reheating Tips
- Fridge: Up to 4 days in an airtight container.
- Freezer: Up to 2 months (slice first for easier reheating).
- Reheat: Air fryer for 2–3 minutes to bring back that caramelized edge.
Delicious Ways to Use Leftover Char Siu
- Fried rice with diced char siu
- Stir-fried noodles
- Char siu bao (steamed buns)
- Stuffed inside sandwiches or wraps
What to Serve with Air Fryer Char Siu Pork
Pair with:
- Steamed jasmine rice
- Pickled cucumbers
- Chinese greens (gai lan, bok choy)
- Egg noodles tossed in soy sauce
Frequently Asked Questions
What is Char Siu Sauce Made Of?
Hoisin, soy sauce, honey/maltose, red bean curd, five-spice, and aromatics.
Where Can You Buy Char Siu Sauce?
Pre-made versions are available in Asian grocery stores, but homemade always tastes fresher and more balanced.
What is Chinese Five-Spice Powder?
A mixture of Sichuan peppercorns, cloves, cinnamon, fennel, and star anise. It’s the soul of many Chinese BBQ dishes.
Can You Store & Reheat Char Siu?
Yes! It reheats beautifully in an air fryer or hot skillet.
