Air Fryer Pork Belly Char Siu

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Sweet, savory, and tender. The BEST char siu recipe to make at home: Pork Belly Char Siu!

A plate of sliced pork belly char siu over rice and a side of gai lan

Most char siu (aka Chinese BBQ pork) recipes call for pork butt or pork shoulder, but pork belly gives the tastiest results.

Another advantage of using pork belly is its uniform size. Pork butt or shoulder typically requires cutting into even pieces since they’re sold as large roasts.

Choosing the best pork belly for char siu

The best pork belly has an even distribution of fat and meat layers, similar to the top three in the image below. The more layers, the better. You don’t want it too fatty, but a cut that’s too lean will turn out tough and dry.

Image of perfectly layered pork belly for char siu

Important note: Use SKINLESS pork belly. The cook time for this recipe isn’t long enough for the skin to become tender. A couple of my local Costco stores sell skinless pork belly, perfect in size for this recipe.

Uses and Substitutions for Chinese fermented red bean curd

The redness in Chinese BBQ sauce traditionally comes from Chinese fermented red bean curd, which provides a natural color from fermented red rice. Besides color, the red bean curd imparts a complex and subtle umami flavor to the char siu. These days, most restaurants use red dye to achieve that signature vibrant red.

You can find fermented red bean curd at most Chinese grocery stores or online stores like Weee!. This is the brand I use:

Image of brand of Chinese fermented red bean curd

Red bean curd can also be eaten mixed into congee (rice porridge) as a topping. This is my primary use for it (for the probiotics!), besides making char siu. You can also use it in most Chinese braised dishes to impart that subtle umami flavor.

Hoisin sauce is a great substitute if you can’t find red bean curd or don’t want to add another item to your pantry. Just note that if your char siu looks brownish, it’s okay! It’ll still be delicious.

Oven method

Check the notes section in the recipe card for modified times and instructions.

A plate of sliced pork belly char siu over rice and a side of gai lan
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Air Fryer Pork Belly Char Siu

Delicious sweet and sticky charsiu but with the tenderness of pork belly. What’s not to like?
Course: Main Course
Cuisine: Chinese
Servings: 4
Calories: 550kcal

Equipment

  • Air fryer

Ingredients

  • lb skinless pork belly cut into 2 long strips
  • 4 cloves garlic minced

Char siu sauce

  • 2 pieces Chinese fermented red bean curd substitute 1 Tbsp Hoisin sauce if unavailable
  • 1 Tbsp maltose or honey
  • 1 Tbsp Shaoxing wine or Chinese rose wine
  • 1 Tbsp soy sauce
  • 1 Tbsp oyster sauce
  • 1 tsp dark soy sauce
  • ¼ tsp ground white pepper
  • 100 g sugar

Instructions

  • In a bowl, mix the char siu sauce ingredients until well incorporated. Stab the pork belly all over with a fork to allow the marinade to further penetrate the pork. Marinate the pork belly with the garlic and char siu in a Ziploc bag in the fridge overnight (at least 8 hours).
  • Preheat air fryer 375°F. Line the tray with a small sheet of foil just enough for the pork belly to rest on. Do not cover all the air flow vents if you can help it. Add the pork belly when the air fryer is ready. Roast for 15 minutes. Baste with leftover char siu marinade 1-2 times in between.
  • When the timer is up, flip the pork belly and baste the other side. Roast for another 10 minutes. Check on your pork belly in between to make sure it isn’t burning.
  • Test to check that pork belly is cooked through and tender. If the pork belly is not charred enough, switch the air fryer to 400°F to “broil” for 1 min until the pork belly is nicely charred. Let it cool/rest for 10 minutes. Slice into small pieces and serve over rice with Garlic and Ginger Gai Lan.

A note on leftover marinade for sauce

  • If you wish to use the remaining marinade over your rice, you MUST simmer it for at least 3-4 minutes before it's safe to eat.

Notes

  • If using a conventional oven, set temperature to 400°F and increase cooking time in step 3 to 15-20 minutes.
  • Air fryer and oven temperature varies between models. Please use discretion to gauge cook times. If unsure, check on your pork belly every now and then to make sure it’s cooking as expected.
  • If you wish to use the remaining marinade sauce to top the finished product, you MUST cook it on a simmer for a few minutes so that it’s safe to eat. You can also drizzle it on the rice.

Nutrition

Calories: 550kcal

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Hi, I’m Ariel 

I’m a foodie with a simple philosophy: why should amazing food be reserved for the weekends alone? I’m all about making every meal delicious because, let’s face it, we only have so many meals in our lifetime.

My mission? To take the stress out of cooking with easy-to-use meal plans so you can enjoy mouthwatering recipes any day of week. Join me on this tasty journey and let’s savor “more taste, less waste” in every bite!

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Hi, I’m Ariel 

I’m a foodie with a simple philosophy: why should amazing food be reserved for the weekends alone? I’m all about making every meal delicious because, let’s face it, we only have so many meals in our lifetime.

My mission? To take the stress out of cooking with easy-to-use meal plans so you can enjoy mouthwatering recipes any day of week. Join me on this tasty journey and let’s savor “more taste, less waste” in every bite!