Fish Ball Stir Fry Recipe: Crispy Cornflour Balls in Savory Soy Sauce

This fish ball stir fry recipe delivers crispy cornflour balls with a satisfying crunch, all while keeping the tender interior intact. The secret lies in a precise cornflour coating that creates that signature texture, paired with a savory soy-based sauce that balances umami and saltiness.

I developed this version after years of perfecting the balance between crispy exterior and juicy center—no more dry, rubbery fish balls here.

The stir-fry technique is what transforms this into a restaurant-quality dish at home. High heat and quick cooking preserve the texture while building deep flavors through the wok hei method.

You'll start with a simple marinade for the fish balls, then work through a two-step coating process that ensures maximum crispiness without frying. The sauce comes together in minutes with pantry staples, making this a weeknight-friendly meal that still feels special.

What you'll end up with is a plate of golden-brown fish balls with crispy edges and tender centers, swimming in a glossy soy-ginger sauce. The aroma alone will have everyone heading to the kitchen, and each bite delivers that perfect contrast of textures and flavors.

Serve over steamed rice for a complete meal, or pair with quick stir-fried vegetables for extra freshness. This recipe proves you don't need fancy ingredients to create impressive results.

One of the best things about this stir-fry is its versatility—adjust the sauce to be spicier, sweeter, or more umami depending on your preference. The technique works equally well with store-bought or homemade fish balls, so you can customize it to what you have on hand.

Let's get cooking—this dish comes together faster than you might expect, and the results will impress even the most skeptical eaters.

Ingredients for fish ball stir fry

Pantry staples plus a few fresh ingredients for that perfect crispy-tender fish ball stir fry.

The fish matters—cod or tilapia stay tender without drying out. Skip the frozen stuff (it's mushy). For the cornflour, Bob's Red Mill or any brand works, but don't substitute regular flour. The ginger should be bright yellow inside, not fibrous or shriveled. I grab mine at Trader Joe's—their pre-grated jar saves time, but fresh is better if you've got it. The sesame oil? Kadoya or La Choy are solid choices, but any brand with a strong aroma will do.

No cornflour? Arrowroot powder works in a pinch, but the texture won't be identical. Short on ginger? One teaspoon of ground ginger plus a pinch of sugar gets you close. The soy sauce can be swapped for tamari or coconut aminos, but light soy has that perfect balance. Fresh garlic is ideal, but garlic powder at half the amount won't ruin it. The green onions? Scallions work too, but the milder flavor means you'll want to use a bit more. For extra crunch, toss in crushed peanuts or fried shallots at the end.

The fish balls keep best in the fridge for 2 days if you make them ahead—freeze them for up to 1 month. The sauce? 3 days max in the fridge, but honestly it tastes better the next day. I double the sauce recipe and freeze half in ice cube trays—perfect for quick stir-fries later. Store everything in airtight containers, and trust me, you'll want leftovers.

Step-by-step instructions for crispy cornflour fish balls in savory sauce

Here's how to make perfectly golden fish balls that stay crispy and a rich, tangy sauce that ties everything together.

In a large bowl, combine the 1.5 lb white fish fillets with the 0.5 cup all-purpose flour, 0.75 cup cornflour (cornstarch), 1 tsp salt, and 0.5 tsp black pepper. The cornflour is key here—it creates that signature crispy texture we're after. Use a fork or your hands to break up the fish into small, even pieces while mixing until everything is thoroughly combined.

Next, add the 2 whole large eggs and mix again until the batter forms a thick, dough-like consistency. You want it to hold together when pressed between your fingers but still be workable. If it feels too dry, add 1-2 tablespoons of cold water to help bind it. Let the batter rest for 10 minutes at room temperature—this helps the cornflour fully hydrate and ensures even cooking later.

Heat 1 tablespoon of vegetable oil in a large skillet over medium-high heat until shimmering. While the oil heats, take the rested batter and gently form it into 1-inch diameter balls—about 12-14 balls total depending on size. Wet your hands slightly with water to prevent sticking as you shape them.

Carefully add the fish balls to the hot oil, working in batches if needed to avoid overcrowding. Fry for 3-4 minutes per side until they turn a deep golden brown color. You'll know they're ready when they release easily from the pan and develop a crispy exterior. Transfer the fried fish balls to a paper towel-lined plate to drain excess oil while you prepare the sauce.

In the same skillet (no need to clean it—the browned bits add flavor), add 1 tablespoon vegetable oil and set over medium heat. Add the 2 tbsp finely grated fresh ginger and 4 minced garlic cloves, cooking for 1 minute until fragrant. This step develops the aromatic foundation of your sauce—don't skip it.

Pour in the 0.5 cup soy sauce, 1 tbsp white rice vinegar, and 1 tbsp granulated sugar. Stir to combine, then add 1 tbsp toasted sesame oil and 3 thinly sliced green onions. Bring to a gentle simmer and let it cook for 3-4 minutes until slightly thickened. The sauce should coat the back of a spoon with a glossy sheen. Taste and adjust seasoning if needed—you might want to add a pinch more sugar or salt to balance the flavors.

Return the crispy fish balls to the skillet with the sauce and gently toss to coat them evenly. Cook for 1-2 minutes on medium heat, just long enough to heat through and allow the sauce to cling to the fish balls. The residual heat will help set the cornflour coating while keeping the centers tender.

Serve immediately while the fish balls are still crispy and the sauce is warm. The contrast between the golden, crunchy exterior and the tender fish inside, paired with the savory-sweet sauce, makes this dish irresistible. For extra flair, garnish with additional green onions and a drizzle of sesame oil before serving.

Regional styles of this recipe

Singaporean Hokkien Style

In Singapore, fish balls are a street food staple, and the stir fry version is all about bold, aromatic flavors.

Start with the same crispy cornflour coating, but amp up the sauce with chili paste—I use 1 tbsp of Sambal Oelek—and add 1 tsp of shrimp paste for that signature umami depth.

The locals love topping it with quick-pickled cucumbers and a squeeze of lime juice right before eating. 🌶️

Thai-Inspired Spicy Version

Thai chefs transform fish balls into a fiery stir fry by swapping soy sauce for fish sauce (¼ cup) and adding 1 tbsp of palm sugar to balance the heat. Toss in 1 tbsp of Thai red curry paste and a splash of coconut milk for richness.

Garnish with thinly sliced Thai basil and crushed peanuts for texture. The result? A dish that’s both spicy and creamy with just the right amount of crunch. 🔥

Japanese Okonomiyaki Fusion

For a Japanese twist, blend the fish balls into a savory pancake-style stir fry. Mix the batter with ¼ cup shredded cabbage and 2 tbsp tenkasu (tempura scraps) for extra crunch.

After frying, drizzle with okonomiyaki sauce (2 tbsp) and sprinkle with bonito flakes and mayonnaise for that iconic Japanese street food flavor. Serve with a side of pickled ginger to cut through the richness. 🍳

Malaysian Sambal Stir Fry

Malaysian versions take the heat up a notch with sambal belacan—a shrimp paste chili sauce that’s both spicy and savory. Mix 1 tbsp sambal belacan into the sauce along with 1 tsp of shrimp paste and a touch of coconut milk to mellow the intensity.

Garnish with fried shallots and cilantro for a dish that’s packed with layers of flavor. This version is a crowd-pleaser at open houses and family gatherings. 🌶️

Modern Fusion Twist

For a contemporary take, try a miso-glazed version where the sauce combines 2 tbsp white miso paste, 1 tbsp honey, and 1 tsp grated ginger. The miso adds a deep, fermented umami that pairs perfectly with the crispy fish balls.