Name: Air Fryer Soy Marinated Short Rib
Prep time: 30 min
Cook time: 10 min
Total time: 40 min
Ingredients: 2 lb Flanken-Cut Short Ribs; Water; 1/2 Onion, Grated; 1 tbsp Minced Garlic; 2 tbsp Oyster Sauce; 2 tbsp Soy Sauce; 1 tbsp Dark Soy Sauce; 2 tbsp Honey; 1/2 tbsp MSG; 1/2 tsp Black Pepper; 1 tbsp Oil; Sesame Seeds; Green Onions

4.8 from 5 votes

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When I first shared my grilled soy marinated short rib recipe, it instantly became a fan favorite across all my social media platforms. The combination of a savory, slightly sweet marinade paired with the smoky char of the grill really hit home for many people. But almost immediately, the comments started rolling in, asking if they could make the short ribs in an air fryer instead? So today, we’re doing exactly that. I’ve taken the same recipe that made the grilled version so popular, simplified the process, and adapted it for the air fryer. The result? A juicy, flavorful, and tender soy marinated short rib that’s not only easy to prepare but also incredibly tasty; perfect as a quick appetizer on its own, or served over rice or vermicelli noodles as a full meal.

What Are Flanken Cut Short Ribs?

For this recipe, you’ll want to use flanken-cut short ribs. If you’re unfamiliar with the name, you might also see them labeled as Korean-style short ribs, cross-cut ribs, or LA galbi cut. Unlike English-cut short ribs (which are cut into thick chunks with the bone running along the side), flanken-cut short ribs are sliced thin right across the bone, making them perfect for quick marinades and fast cooking methods like grilling or air frying.

Holding a plate of soy marinated short ribs

The first step in preparing them is crucial: soak the ribs in cold water for about 10 minutes. This quick step helps wash away any loose bone fragments from the cutting process and removes excess blood. Not only does this improve the overall texture, but it also gives the finished dish a cleaner, more balanced flavor.

Mixing bowl with soy marinated short rib

The Secret Ingredient: Grated Onion

Every great marinade has a secret, and for these short ribs, it’s grated onion. This is a classic ingredient in many Korean marinades, and for good reason. Not only does it add a subtle sweetness and depth of flavor, but it also brings in a natural enzyme called alliinase. Think of it as nature’s version of a meat mallet, but way more subtle and flavorful.

Alliinase is an enzyme found in onions (and other alliums, such as garlic and scallions) that activates the moment the onion is cut, grated, or crushed. It’s responsible for producing those sharp, sulfurous compounds that make you tear up when chopping onions. But beyond just flavor, this enzyme also plays a role in breaking down proteins in meat. By gently unraveling the muscle fibers, it helps tenderize tougher cuts like short ribs.

Close Up Shot of Soy Marinated Short Ribs

This tenderizing step is especially important for our air fryer method. Unlike grilling over charcoal or slowly braising which give the meat more time to soften through low and slow cooking, the air fryer works fast at high heat. Without a little help, the short ribs could come out chewy. The grated onion and its handy enzyme alliinase works quietly behind the scenes, ensuring that the ribs stay juicy, tender, and packed with flavor even with a relatively short cook time.