Miso Glazed Cod with Bok Choy is a deliciously simple dish that combines tender, flaky cod with a sweet and salty miso glaze. The glaze caramelizes beautifully on the fish, giving it a wonderful depth of flavor. Paired with crisp, sautéed bok choy, this meal feels light but still satisfying, perfect for a weeknight dinner or a special occasion.
I love making this dish because it’s quick to prepare yet impressive enough to serve when friends come over. The miso glaze is easy to whip up ahead of time, and while the fish bakes, you can gently cook the bok choy to keep its fresh crunch. I find that the contrast between the soft cod and slightly crisp bok choy makes every bite interesting and comforting.
My go-to way to serve this is right over a bed of steamed rice, so the little bit of extra miso sauce gets soaked up perfectly. It’s one of those meals that feels fresh, light, and full of flavor without a lot of fuss. I always think it’s great when something tastes this good and comes together so quickly!
Key Ingredients & Substitutions
Cod: Cod is mild and flaky, but you can swap it with halibut, sea bass, or even salmon if you want a richer flavor. Just watch the cooking time, as thicker fish takes longer.
Miso Paste: White miso is sweet and light, perfect for glazing. If you have red or brown miso, use less because they are stronger and saltier.
Mirin & Sake: These add sweetness and depth. If you don’t have sake, dry white wine works. For mirin, use a mix of rice vinegar and sugar as a substitute.
Bok Choy: Baby bok choy cooks quickly and stays tender-crisp. If unavailable, regular bok choy or even baby spinach can stand in, adjusting cooking times.
How Do You Get the Perfect Miso Glaze on Cod?
Getting the glaze just right means balancing caramelization and gentle cooking to keep the fish moist.
- Pat fish dry well to help the glaze stick and sear nicely.
- Brush the glaze thickly but evenly all over the fillets.
- Use medium-high heat for a good sear but keep watch to avoid burning the miso’s natural sugars.
- Flip gently after 3-4 minutes so the glaze sets beautifully without breaking the fish.
Equipment You’ll Need
- Large nonstick or cast-iron skillet – I recommend it because it sears the fish evenly and can go from stove to oven if needed.
- Small mixing bowl – perfect for whisking the miso glaze until smooth.
- Whisk or fork – makes blending the ingredients quick and easy.
- Steamer or skillet with a lid – for steaming the bok choy gently without overcooking.
- Serving plates – for presentation and easy serving.
Flavor Variations & Add-Ins
- Swap the cod for salmon or halibut to change up the flavor and texture.
- Add sliced mushrooms or snap peas to the bok choy for extra crunch and flavor.
- Mix in a splash of rice vinegar or lime juice to the miso glaze for a tangier note.
- Sprinkle chopped green onions or cilantro over the dish for fresh brightness.
Miso Glazed Cod with Bok Choy
Ingredients You’ll Need:
For the Fish and Glaze:
- 4 cod fillets (about 6 oz each)
- 3 tablespoons white miso paste
- 2 tablespoons mirin (Japanese sweet rice wine)
- 1 tablespoon sake (or dry white wine)
- 1 tablespoon soy sauce
- 1 tablespoon brown sugar or honey
- 2 teaspoons grated fresh ginger
- 1 garlic clove, minced
- 1 tablespoon vegetable oil (for cooking fish)
For the Bok Choy:
- 4 baby bok choy, halved lengthwise and washed
- 1 tablespoon sesame oil (for sautéing bok choy)
- 1/4 cup water or low sodium vegetable broth (to steam bok choy)
To Serve (Optional):
- Steamed white or brown rice
- Toasted sesame seeds for garnish
How Much Time Will You Need?
This dish takes about 10 minutes for prep and 15 minutes for cooking. Altogether, plan for about 25 minutes from start to finish, making it a quick and tasty meal option.
Step-by-Step Instructions:
1. Make the Miso Glaze:
In a small bowl, whisk together the white miso paste, mirin, sake, soy sauce, brown sugar (or honey), grated ginger, and minced garlic until you have a smooth glaze.
2. Prepare and Cook the Cod:
Pat the cod fillets dry with paper towels. Brush each fillet generously with the miso glaze on all sides. Heat vegetable oil in a large nonstick or cast-iron skillet over medium-high heat. Once hot, add the cod fillets skin-side down if applicable. Let them sear for 3-4 minutes without moving until golden and caramelized. Then carefully flip the fillets and cook another 3-4 minutes, until the fish flakes easily and the glaze is sticky. Remove from heat and keep warm.
3. Sauté and Steam the Bok Choy:
In a separate large skillet, warm sesame oil over medium heat. Place the halved bok choy cut side down and sauté for about 2 minutes until lightly browned. Add water or vegetable broth and cover immediately. Let the bok choy steam for 3-4 minutes until tender but still bright green. Remove the cover and let any remaining liquid evaporate.
4. Serve:
Plate the miso glazed cod next to the bok choy. Drizzle any leftover glaze from the fish pan over the cod. Sprinkle toasted sesame seeds on top if you’d like. Serve with steamed rice for a complete meal.
Can I Use Frozen Cod for This Recipe?
Yes! Just be sure to thaw the cod completely in the refrigerator overnight before cooking. Pat it dry well to ensure the glaze sticks and the fish sears nicely.
What Can I Substitute for Mirin and Sake?
If you don’t have mirin, use a mix of 1 tablespoon rice vinegar plus 1 teaspoon sugar. Dry white wine works well as a sake substitute. These swaps keep the balance of sweetness and acidity.
How Do I Store Leftovers?
Keep any leftover cod and bok choy in an airtight container in the refrigerator for up to 2 days. Reheat gently on the stove or in the microwave to avoid drying out the fish.
Can I Use Other Vegetables Instead of Bok Choy?
Absolutely! Baby spinach, snap peas, or even tender asparagus pairs nicely if you don’t have bok choy on hand. Adjust cooking times as needed to keep them bright and crisp.