A Guide to Stir-Fried Cod with Yellow Squash and Asparagus

A light, flavorful meal using water-velveting for tender fish and crisp vegetables.

By Sneha Tete, Integrated MA, Certified Relationship Coach
Created on

Stir-Fried Cod with Yellow Squash and Asparagus

Stir-fries are a cornerstone of quick, flavorful home cooking—a well-executed stir-fry combines fresh vegetables and tender protein in a light, savory sauce, cooked swiftly to maintain vibrant color and crisp texture. At its best, a stir-fried fish dish like this one—with flaky cod, sweet yellow squash, and just-crisp asparagus—offers a harmony of flavors and a celebration of in-season produce. This guide explores the essentials of preparing stir-fried cod with yellow squash and asparagus, including a key Chinese restaurant technique: water-velveting for perfectly tender fish.

Why This Recipe Works

  • Water-velveting ensures juicy, tender fish fillets that hold together and soak up sauce.
  • Quick cooking prevents overcooked vegetables and preserves flavor.
  • Minimal ingredients highlight the freshness of seasonal vegetables and the delicate flavor of white fish.

The Essential Technique: Water-Velveting Fish

A standout feature of many Chinese restaurant stir-fries is the silky, tender texture of the fish—achieved through water-velveting. This process involves coating fish fillets in a simple marinade, then briefly blanching them in hot water before stir-frying. Here’s why water-velveting matters:

  • Makes fish fillets resilient, preventing them from breaking up in the wok.
  • Creates a delicate, moist texture that absorbs sauce well.
  • Prevents sticking and keeps fish from becoming rubbery or dry.

The water-velvet technique is an accessible, low-fat alternative to deep-fat velvetting and ideal for home cooks new to making delicate stir-fried seafood.

Choosing Ingredients

The beauty of this stir-fry comes from its simplicity: cod, yellow squash, and asparagus. Each offers contrasting textures—firm yet flaky fish, tender squash, and crisp asparagus spears.

  • Cod fillets: Fresh or frozen, skinless, cut into bite-sized pieces. Substitute with other white, flaky fish like haddock or pollock.
  • Yellow squash: Choose small-to-medium, unblemished squash. Other summer squash, like zucchini, work well.
  • Asparagus: Opt for thick spears if possible—they’re less likely to overcook. Trim ends and slice on a sharp bias for appealing presentation and even cooking.

Other essentials include ginger, garlic, scallions, and a simple mixture of soy sauce, Shaoxing wine (or dry sherry), sugar, salt, and white pepper for the sauce.

Substitution Notes

  • For cod, try flounder, sole, or tilapia if local options are unavailable.
  • Zucchini, pattypan squash, or baby zucchini can stand in for yellow squash.
  • Try snow peas, sugar snap peas, or green beans if asparagus is out of season.

Recipe: Stir-Fried Cod with Yellow Squash and Asparagus

Ingredients

  • 1 pound skinless cod fillets, cut into 1.5-inch pieces
  • 2 tablespoons Shaoxing wine or dry sherry
  • 1 teaspoon kosher salt
  • 1/2 teaspoon white pepper
  • 2 teaspoons cornstarch
  • 2 tablespoons vegetable oil, divided
  • 2 small yellow squash, halved lengthwise and thinly sliced on a bias
  • 1 bunch asparagus, woody ends trimmed, cut diagonally into 2-inch pieces
  • 1-inch piece fresh ginger, peeled and finely julienned
  • 2 cloves garlic, sliced
  • 2 scallions, sliced on a bias
  • Sauce: 1.5 tablespoons light soy sauce, 1 teaspoon sugar, 2 tablespoons water

For Water-Velveting Fish

  1. In a medium bowl, combine cod pieces with Shaoxing wine, salt, white pepper, and cornstarch. Mix until fish is evenly coated; set aside for 10–15 minutes.
  2. Bring a medium pot of water to a bare simmer (do not boil).
  3. Add 1 tablespoon oil to the water, then gently slide in the cod pieces in a single layer.
  4. Simmer 30–60 seconds until the fish turns opaque and just starts to firm up. Using a slotted spoon, transfer to a plate. Do not overcook—the fish will finish cooking in the stir-fry.

For Stir-Frying

  1. Prepare all vegetables before starting to cook; stir-fries move fast.
  2. Combine soy sauce, sugar, and water into a small bowl for the sauce.
  3. Heat a wok or large nonstick skillet on high until smoking. Add remaining 1 tablespoon oil, then ginger and garlic; stir-fry 15–30 seconds until fragrant.
  4. Add squash and asparagus. Stir-fry until squash softens at edges and asparagus is bright, about 2 minutes.
  5. Add scallions and toss briefly.
  6. Add water-velveted cod and the prepared sauce. Gently fold everything together, trying not to break fish apart. Stir-fry until cod is cooked through and everything is coated, about 1 minute.
  7. Remove from the heat and serve immediately with steamed rice.

Tips for Stir-Frying Cod Successfully

  • Prep ahead: Have all sauces, aromatics, and vegetables measured and ready before you start.
  • Do not crowd the pan: For even stir-frying, ensure vegetables and fish have ample space. For large batches, stir-fry in stages.
  • Use a nonstick wok or skillet: Prevents delicate fish from breaking or sticking.
  • Handle fish gently: Fold, don’t stir vigorously, when returning fish to the pan.

How Water-Velveting Enhances Stir-Fried Fish

Water-velveting is a foundational technique in Chinese kitchens, prized for its ability to achieve fish with a silken exterior and juicy interior. Unlike deep-frying or dry searing, water-velveting uses low heat and water, so fish doesn’t develop crust but stays incredibly moist.

  • In Chinese-American restaurants, this method is the secret behind the melt-in-your-mouth texture found in classic dishes like shrimp with lobster sauce or steamed fish stir-fries.
  • The cornstarch marinade forms a light coating, protecting the fish and helping sauce adhere later.

Pairings and Serving Suggestions

While this stir-fry is satisfying on its own, it pairs well with fluffy jasmine rice, brown rice, or even quinoa for a grain boost. To complete the meal, consider serving:

  • Simple steamed greens (bok choy, gai lan) tossed with garlic oil
  • Quick cucumber salad with sesame and vinegar
  • Egg drop soup for a light, warming starter

Nutritional Spotlight

IngredientBenefits
CodHigh in lean protein, low in fat, provides B12 and selenium
Yellow SquashRich in vitamin C, potassium, dietary fiber
AsparagusHigh in folate, vitamins A and K, and antioxidants
Ginger & GarlicMay support immunity and digestion, add flavor with minimal calories

Frequently Asked Questions (FAQs)

Q: Can I use frozen fish for stir-frying?

A: Yes. Thaw frozen cod fully and pat dry before marinating. Ensure pieces are even in size for uniform cooking.

Q: What if I don’t have Shaoxing wine?

A: Dry sherry or mirin are good substitutes. Use apple juice with a splash of rice vinegar if avoiding alcohol.

Q: Can I skip water-velveting?

A: You can, but the fish will be more likely to break apart and dry out during stir-frying. Water-velveting is recommended for best texture.

Q: How do I make this dish gluten-free?

A: Use gluten-free soy sauce (tamari) and ensure rice wine or other ingredients are gluten-free certified.

Q: What other vegetables work well in this stir-fry?

A: Snap peas, bell pepper, green beans, or baby bok choy can be substituted for squash and asparagus depending on seasonality and taste preferences.

Expert Tips For Perfect Stir-Fried Fish Every Time

  • Size consistency: Cut all vegetables and fish pieces to similar sizes for even cooking.
  • Don’t over-marinate the fish: 10–15 minutes is sufficient, as acid or salt in longer marination can degrade texture.
  • High heat with attention: Stir-fries need high heat, but stand by the pan—these dishes cook fast!
  • Light hand with sauce: The goal is to lightly coat, not smother, the delicate flavors.

Nutrition Facts (Approximate per serving)

  • Calories: 250
  • Protein: 28g
  • Fat: 8g
  • Carbohydrates: 14g
  • Fiber: 3g

*Nutrition will vary based on actual ingredients and serving size.

Simple Variations

  • For a spicy version, add a fresh chopped chili or a teaspoon of chili-garlic sauce with the aromatics.
  • Add a handful of snow peas or sliced red pepper for color and added crunch.
  • Use shrimp instead of cod for a different seafood profile—water-velvet shrimp the same way.
  • Double the vegetables for a lighter, vegetable-forward meal.

Troubleshooting Common Problems

  • Fish falling apart: Ensure water temperature is just below boiling. Overcooking or rapid boiling can break fish fillets.
  • Vegetables soggy: High heat and fast cooking preserve crunch. Work in batches if your pan is small.
  • Fish bland or dry: Mix marinade thoroughly, don’t overcook, and add the sauce just before serving for maximum flavor absorption.

Conclusion

Stir-fried cod with yellow squash and asparagus is a showcase for luminous, fresh ingredients handled with care. Using water-velveting brings the elegance of Chinese restaurant seafood to your home kitchen, resulting in silky fish and a vibrant, healthy meal—perfect for any night of the week.

Sneha Tete
Sneha TeteBeauty & Lifestyle Writer
Sneha is a relationships and lifestyle writer with a strong foundation in applied linguistics and certified training in relationship coaching. She brings over five years of writing experience to thebridalbox, crafting thoughtful, research-driven content that empowers readers to build healthier relationships, boost emotional well-being, and embrace holistic living.

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