Crispy Air Fryer Pork Belly (Sìu Mì)

By DishFrames
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Make restaurant-quality crispy pork belly at home in just 25 minutes using an air fryer. Features crackling golden skin and juicy, tender seasoned meat.

↓ The ingredients ↓ The steps

Skip the long lines and pricey pre-made options by making this classic crispy pork belly right in your own kitchen. Using a clever combination of blanching, scoring, and a protective salt crust in the air fryer, you get maximum crunch on the skin while keeping the meat succulent and flavorful.

Golden-brown roasted crispy pork belly slices with crackling skin and tender meat served on parchment paper inside a woven basket.
Golden-brown roasted crispy pork belly slices with crackling skin and tender meat served on parchment paper inside a woven basket.
Prep15 mins
Cook55 mins
Total1 hr 10 mins
Yield4 servings
DifficultyMedium
Calories650 kcal

Ingredients

Instructions

  1. 1Blanch pork belly with aromatics
    Three raw pork belly strips placed in a pan filled with water for boiling.

    Place three strips of raw pork belly into a pan filled with water, ginger, scallions, and cooking wine to eliminate gamey odors before roasting.

    Tip: Add ginger, scallions, and cooking wine to effectively remove gamey odors from the pork.
  2. 2Simmer with aromatics
    Pork belly strips boiling inside a pot with ginger and scallions.

    Continue boiling the pork belly strips in the pot with ginger and scallions until the 20-minute cooking time is completed, then take them out.

    Tip: Ensure the water maintains a steady boil to thoroughly blanch the meat.
  3. 3Score the pork belly
    A knife making vertical incisions on a boiled pork belly strip on a cutting board.

    Take the boiled pork belly and use a knife to make vertical cuts into the surface, being careful not to cut all the way through the bottom.

    Tip: Scoring the meat allows marinades and seasonings to penetrate deeply into the layers.
  4. 4Add sauces for flavor
    Light soy sauce and oyster sauce being poured over scored pork belly strips.

    Pour light soy sauce and oyster sauce directly onto the scored pork belly strips to build a savory base flavor.

    Tip: Evenly distribute the sauces across the cuts for balanced seasoning.
  5. 5Apply BBQ seasoning and massage
    BBQ seasoning powder being applied and massaged onto the pork belly strips.

    Apply BBQ seasoning powder to the pork belly and use a gloved hand to thoroughly massage the spices into the meat so it absorbs the flavors deeply.

    Tip: Massage firmly to ensure the seasoning reaches deep inside the scored cuts.
  6. 6Wrap securely in foil
    Seasoned pork belly strips tightly wrapped inside aluminum foil.

    Wrap the seasoned pork belly strips tightly in aluminum foil, leaving only the top skin exposed, to lock in internal moisture.

    Tip: Wrap securely so the juices do not leak out during cooking.
  7. 7Apply First Vinegar Coat
    A close-up of pork belly strips wrapped in foil being brushed with white vinegar.

    Wrap the seasoned pork belly securely in aluminum foil with only the top skin exposed, then brush a generous layer of white vinegar evenly across the surface to promote crispiness.

    Tip: Brushing the skin with vinegar helps achieve an extra crispy texture during roasting.
  8. 8Cover with Salt Crust
    A layer of coarse salt being spread evenly on top of the pork belly inside foil.

    Spread a generous layer of coarse salt entirely over the top of the pork belly strips inside the foil containers.

    Tip: The salt layer helps retain moisture and draws out oil from the skin, ensuring perfect crispiness.
  9. 9Remove salt crust
    The hardened salt layer being cracked and removed from roasted pork belly strips.

    Carefully crack and remove the hardened salt crust from the top of the roasted pork belly without damaging the skin underneath.

    Tip: Crack the salt layer gently so it comes off cleanly without damaging the crispy skin underneath.
  10. 10Brush with Vinegar Again
    The pork belly with the salt removed being brushed with white vinegar in the air fryer basket.

    After removing the salt crust and foil, brush the pork belly skin with white vinegar one more time before the final roast to ensure blistering.

    Tip: This second application of vinegar ensures the skin blisters and turns golden brown.

Storage & Reheating

Refrigerator
3 days
Store in an airtight container once completely cooled.
Reheating
10 min
Reheat in the air fryer at 180 degrees for 5 to 10 minutes to restore skin crispiness. Avoid microwaving, which makes the skin chewy.

Burn It Off

Running
~65 minutes at a moderate pace (~9 km/h).
Leisurely Cycling
~1 hour 45 minutes at a steady pace (~15 km/h).
Brisk Walking
~2 hours at a steady pace (~5 km/h).

Frequently Asked Questions

The coarse salt acts as a moisture absorber that draws excess oil and water out of the pork skin while baking, which is the secret to achieving that signature bubbly, crackling texture.
Coarse salt or rock salt is strongly recommended because it forms a thick, solid crust that is easy to crack and remove in one piece. Table salt is too fine and can melt into the skin, making it overly salty.
The acid in the white vinegar breaks down surface proteins and helps dehydrate the outer layer of skin, promoting rapid blistering and an extra-crispy finish when exposed to dry heat.
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