Yes, microwave cod turns out juicy and flavorful — if you know the right technique. Medium-high power, 3-4 minutes per fillet, always covered and with some liquid. In this guide, we give you 5 complete recipes that take no more than 10 minutes: from steamed cod with vegetables to express tomato sauce cod.
Does microwave cod work? The truth
Microwave cod has an unfair bad reputation. The reality is that the microwave cooks by waves that agitate the water molecules in the food — and cod has a lot of water (80%). This means the microwave steams the cod from the inside, exactly like conventional steaming.
The result, if done correctly, is juicy cod that flakes easily and retains all its flavor. What ruins microwave cod is excessive cooking time and too high power: it dries out and becomes rubbery. The key is medium power (600-700W) and short cooking times.
For a quick weeknight dinner, microwave cod is a legitimate solution that chefs often don't publicly recommend but many use at home. High-quality protein, low in fat, ready in less time than it takes to preheat the oven.
The 5 keys to perfect microwave cod
1. Medium power, never maximum. Use 70% of your microwave's power (600-700W in most). At maximum power, the surface dries out before the center cooks.
2. Always covered. Use an inverted plate, a microwave lid, or perforated cling film. The trapped steam cooks evenly and maintains moisture.
3. Add liquid. 2-3 tablespoons of water, white wine, broth, or olive oil at the bottom of the container. This creates a micro-atmosphere of steam.
4. Uniform pieces. If the fillets have different thicknesses, place the thinner ones towards the center of the plate (where the microwave is less intense). Desalted cod loins are ideal because they come in uniform portions.
5. Mandatory resting. Remove the cod 30 seconds before you think it's done. Cover and let it rest for 1-2 minutes — residual cooking finishes the job without drying it out.
Recipe 1: Steamed Cod with Lemon and Herbs (8 min)
The simplest and one of the best. Place 2 desalted cod fillets on a microwave-safe plate. Drizzle with 1 tablespoon of extra virgin olive oil and the juice of half a lemon. Add a sprig of fresh thyme or dill on top. Cover with another plate or a microwave lid.
Cook at medium-high power (70%) for 3-4 minutes. Let rest covered for 2 minutes. Open, check that it flakes with a fork — if the center is slightly translucent, it's perfect (it will finish cooking with the resting time).
Result: Juicy cod with a clean taste of sea, lemon, and herbs. Perfect for a diet or light dinner. Serve with a green salad.
Recipe 2: Cod with Vegetables in the Microwave (10 min)
In a microwave-safe dish, place a layer of thinly sliced vegetables: 1 zucchini sliced 3 mm thick, 1 red pepper in strips, half an onion in thin rings. Drizzle with 2 tablespoons of olive oil and a pinch of salt. Cook the vegetables alone for 4 minutes at high power.
Place the cod fillets on top of the vegetables. Drizzle with a little more oil and a tablespoon of white wine. Cover and cook for 3-4 minutes at medium-high power.
Let rest for 2 minutes covered. Serve directly from the dish with a drizzle of raw oil on top. A complete meal in 10 minutes.
Recipe 3: Express Tomato Sauce Cod (10 min)
Pour half a jar of homemade fried tomato (or natural crushed tomatoes with a pinch of sugar) into the base of a microwave dish. Add 1 sliced garlic clove, a pinch of sweet paprika, and a drizzle of oil. Cook for 3 minutes at high power to make the sauce bubble.
Place the cod fillets over the hot sauce. Cover and cook for 3-4 minutes at medium-high power. Rest for 2 minutes. The cod absorbs some of the sauce and has an intense flavor. Finish with fresh parsley and a drizzle of raw extra virgin olive oil.
Recipe 4: Cod with Potatoes in the Microwave (10 min)
Cut 2 medium potatoes into 4 mm slices. Place them on a microwave-safe plate with 3 tablespoons of water, salt, and a drizzle of oil. Cover and cook for 5-6 minutes at high power until tender.
Place the cod fillets over the potatoes. Add thin onion rings, black olives, and generous olive oil. Cover and cook for 3-4 minutes at medium-high power. An express version of Portuguese-style cod that works surprisingly well.
Recipe 5: Quick Pil-Pil Cod in the Microwave (8 min)
It's not a true pil-pil (that requires a pan and patience), but this quick version captures the idea. In a microwave-safe dish, heat 4 tablespoons of extra virgin olive oil with 3 sliced garlic cloves and a dried chili pepper for 1 minute at medium power.
Place the cod fillets skin-side up over the flavored oil. Cover and cook for 3 minutes at medium-high power. The oil and cod juices create a kind of light emulsion. It's not the pil-pil that Basque masters emulsify and bind, but it's a tasty and quick dinner. If you want the authentic version, read our traditional pil-pil cod recipe.
Cooking Times by Fillet Thickness
| Fillet Thickness | Power | Time | Resting Time |
|---|---|---|---|
| Thin (1-1.5 cm) | 70% | 2-2.5 min | 1 min |
| Medium (2-3 cm) | 70% | 3-4 min | 2 min |
| Thick (3-4 cm) | 60% | 4-5 min | 2-3 min |
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Conclusion
The microwave is not the enemy of cod — excessive time and power are. With the correct techniques (medium power, covered, liquid, resting), microwave cod is a legitimate solution for quick weeknight dinners without sacrificing flavor or texture.
The 5 recipes in this guide demonstrate that in 8-10 minutes you can have anything from a diet dish to an express version of Portuguese-style cod. The key is to start with good desalted cod — the microwave amplifies the quality of the product, for better or worse.
Frequently Asked Questions
Does microwave cod turn out dry?
Only if you use maximum power or cook it too long. At medium-high power (70%) and covered, it turns out juicy and flakes into perfect layers.
How many minutes does cod take in the microwave?
Between 3 and 5 minutes depending on the thickness of the fillet. A medium fillet (2-3 cm) takes 3-4 minutes at 70% power. Always add 1-2 minutes of covered resting time.
Can cod be desalted in the microwave?
It is not recommended. Desalting requires slow osmosis in cold water (24-48 hours). The microwave would cook the cod before desalting it. Buy already desalted cod for maximum speed.
What dish should I use for microwave cod?
Any microwave-safe ceramic or glass dish. Avoid plastics unless they are specifically designed for microwaves. A deep plate with another plate on top as a lid works perfectly.
Can frozen cod be cooked in the microwave?
Yes, but first defrost it in the microwave using the defrost function (3-4 minutes) or in the refrigerator overnight. Do not cook directly from frozen: the outside will cook before the inside.
Does the microwave destroy cod's nutrients?
On the contrary: by cooking faster and at a lower temperature than frying, the microwave preserves more nutrients. Proteins and omega-3s remain practically intact.
Maria José Sáez Pastor
Chef and recipe creator for Bacalao.com. Specialist in seafood cooking with accessible techniques for everyday life. From Mercat del Ninot, Barcelona.
