Frozen Cod: Easy Recipes and How to Thaw It Properly
Frozen cod is the most accessible way to cook this fish at home: it's available in any supermarket, doesn't need to be desalted, and is more economical than dried salted cod. But it has its rules. Improper thawing ruins the texture, and certain recipes that work with desalted cod don't work as well with frozen. This guide gives you the correct thawing methods, the recipes best suited for frozen cod, and tricks to ensure the result doesn't disappoint.
Contents
- Frozen vs. Desalted Cod: Real Differences
- How to Thaw Cod Correctly
- Mistakes That Ruin Frozen Cod
- 1. Oven-Baked Frozen Cod with Vegetables
- 2. Frozen Cod in Tomato Sauce
- 3. Breaded Frozen Cod
- 4. Potato Stew with Frozen Cod
- 5. Cream of Frozen Cod
- Nutritional Value
- Frequently Asked Questions
- Conclusion
Frozen vs. Desalted Cod: Real Differences
Updated March 2026. Since 1990, we hand-select every product. This guide reflects that experience.
Before cooking, it's good to understand what you're using. Frozen cod and desalted cod (previously dried and salted) are the same fish processed in very different ways, and this affects the cooking outcome.
| Characteristic | Frozen Cod | Desalted Cod |
|---|---|---|
| Process | Flash-frozen fresh at -30°C on board | Salted for weeks + desalted for 48h |
| Water Content | High (80%) | Medium (65-70%) |
| Texture | Soft, crumbles more easily | Firm, defined flakes |
| Flavor | Milder, less complex | More intense, concentrated by salting |
| Gelatin | Less (lost in freezing) | More (salting concentrates it) |
| Price | 8-15 €/kg | 15-30 €/kg |
| Convenience | Just thaw | Needs 48h desalting or buy pre-desalted |
| Ideal for | Oven-baking, breading, stews, creams | Grilling, pil pil, green sauce, esqueixada |
The honest conclusion: desalted cod is superior in flavor and texture for most recipes. But frozen cod has its place — it's cheaper, more accessible, and works perfectly in recipes with sauce or enclosed cooking where the cod integrates with other ingredients.
How to Thaw Cod Correctly
The thawing method determines the final texture of the cod. Not all methods are equal.
Method 1: In the Refrigerator (Recommended)
Place the frozen cod in a deep dish covered with cling film. Leave it in the lower part of the refrigerator (4-5 °C) for 12-24 hours depending on thickness. This method produces the best texture because thawing is slow and even. Muscle fibers rehydrate gradually without losing structure.
Approximate thawing times:
- Thin fillets (1-2 cm): 8-12 hours
- Standard loins (3-4 cm): 18-24 hours
- Thick pieces (>5 cm): 24-36 hours
Method 2: In Cold Water (Urgent)
If you're short on time, submerge the cod (in its airtight packaging or a sealed plastic bag) in a bowl of cold water. Change the water every 30 minutes. A medium-thickness fillet will be thawed in 1-2 hours. The result is acceptable but slightly inferior to the refrigerator method.
Method 3: Direct from Freezer to Oven (Emergency)
For oven recipes with sauce, you can cook cod directly from frozen. Increase the oven time by 50% (from 15 to 22-25 minutes). Cod releases more water, so the sauce will be thinner — compensate by reducing the amount of liquid in the recipe.
Mistakes That Ruin Frozen Cod
| Mistake | Consequence | Solution |
|---|---|---|
| Thawing at room temperature | Bacterial risk + soft exterior, frozen interior texture | Always in the refrigerator or cold water |
| Microwave thawing | Partial cooking, rubbery texture, altered flavor | Avoid. Plan ahead |
| Not drying after thawing | Steams in its own water instead of browning | Dry thoroughly with paper towels |
| Refreezing without cooking | Destroyed texture, food safety risk | Do not refreeze. Cook completely and freeze the finished dish |
| Cooking without bringing to room temperature | Overcooked exterior, raw center | Remove from refrigerator 15-20 min before cooking |
1. Oven-Baked Frozen Cod with Vegetables
Ingredients (4 servings)
- 4 frozen cod loins (200 g each), thawed
- 2 medium potatoes, thinly sliced
- 1 onion, sliced into rings
- 2 tomatoes, sliced
- 1 red bell pepper, sliced into strips
- 100 ml extra virgin olive oil
- Salt, pepper, paprika
Step-by-step
Preheat oven to 200°C (390°F). Pat thawed cod dry with paper towels. Place potatoes in a greased baking dish, season, and bake for 20 minutes. Add onion, bell pepper, and tomato. Place cod loins on top. Drizzle with olive oil, sprinkle with paprika. Bake for another 18-20 minutes until cod is cooked through (flakes begin to separate).
Tip: Dry the cod very well before putting it in the oven. This is critical with frozen cod, which retains more water than desalted cod.
2. Frozen Cod in Tomato Sauce
Ingredients (4 servings)
- 4 frozen cod fillets, thawed
- 800 g crushed tomatoes
- 1 onion, chopped
- 3 cloves garlic
- 1 green bell pepper, chopped
- Olive oil, bay leaf, salt, sugar
Step-by-step
Sauté onion and bell pepper for 10 minutes. Add garlic for 2 minutes. Stir in crushed tomatoes and cook for 20 minutes. Pat cod fillets dry and season them. Submerge in the sauce and cook over low heat for 12-15 minutes. Frozen cod releases more liquid, so the sauce might need an extra 5 minutes of reduction at the end.
3. Breaded Frozen Cod
Ingredients (4 servings)
- 400 g frozen cod in thin fillets, thawed
- 150 g flour
- 200 ml sparkling water (or beer)
- 1 egg
- Salt, pepper
- Oil for frying
Step-by-step
Pat the fillets very dry. Season with salt and pepper. Prepare the tempura batter: mix flour, egg, and cold sparkling water (cold is key for a crispy coating). Do not overmix — lumps are good. Dip the cod in flour, then in the tempura batter. Fry in oil at 180°C (350°F) for 3-4 minutes until golden and crispy.
Tip: Cold sparkling water produces a crispier coating than conventional beaten egg. Beer also works and adds flavor.
4. Potato Stew with Frozen Cod
Ingredients (4 servings)
- 400 g frozen cod, thawed and cut into pieces
- 800 g potatoes, "cascadas" (broken with a knife)
- 1 onion, chopped
- 3 cloves garlic
- 1 green bell pepper
- 1 teaspoon sweet paprika
- 1 bay leaf
- Fish stock or water
- Olive oil
Step-by-step
Sauté onion and bell pepper for 8 minutes. Add garlic and paprika (off the heat to prevent burning). Return to heat, add the "cascadas" potatoes, and cover with hot fish stock. Cook for 20-25 minutes until potatoes are done. Add the chopped cod for the last 10 minutes. The starch from the "cascadas" potatoes naturally thickens the stew.
Tip: "Cascando" potatoes (stabbing with a knife and breaking) instead of cutting them releases more starch, which thickens the stew.
5. Cream of Frozen Cod
Ingredients (4 servings)
- 300 g frozen cod, thawed
- 400 g potatoes
- 1 leek
- 1 onion
- 800 ml fish broth
- 100 ml liquid cream
- Olive oil, salt, white pepper, nutmeg
Step-by-step
Sauté leek and onion for 10 minutes. Add chopped potato and broth. Cook for 20 minutes. Add chopped cod for the last 8 minutes. Blend with an immersion blender. Add cream, adjust salt. Serve with a drizzle of extra virgin olive oil and some crumbled cod on top.
Brandade de Salty Cod - 250g
If you're looking for a quality leap from supermarket frozen cod, desalted cod is the answer. Firmer fibers, more concentrated flavor, natural gelatin that enriches any sauce. Ready to cook, no desalting needed.
Nutritional Value
The nutritional profile of frozen cod is practically identical to fresh cod. Per 100 g:
| Nutrient | Frozen Cod | Desalted Cod |
|---|---|---|
| Calories | 82 kcal | 95 kcal |
| Proteins | 18 g | 21 g |
| Fats | 0.7 g | 0.8 g |
| Sodium | 54 mg | 200-400 mg |
| Omega 3 | 0.2 g | 0.2 g |
| Vitamin B12 | 1.0 µg | 1.0 µg |
The main difference is sodium: desalted cod retains more residual salt from the salting process. Frozen cod is the best option for low-sodium diets. For other nutrients, the differences are insignificant.
Frequently Asked Questions
Can you cook cod directly from frozen?
Yes, in oven or sauce recipes. Increase cooking time by 50% and keep in mind it will release more water. For grilling or frying, it's essential to thaw first: moisture prevents browning and causes dangerous splatters.
How long does it take to thaw cod in the refrigerator?
It depends on the thickness. Thin fillets (1-2 cm): 8-12 hours. Standard loins (3-4 cm): 18-24 hours. Thick pieces: 24-36 hours. Always plan ahead — taking cod out of the refrigerator the night before is the best strategy.
Is frozen cod the same as fresh cod?
Cod frozen on board the boat (at -30°C) is, in practical terms, equivalent to fresh. Flash-freezing preserves the cellular structure. In many cases, the "fresh cod" at the counter has been frozen and thawed by the fishmonger. Truly fresh (never frozen) cod is rare outside of port areas.
Why does frozen cod release so much water when cooked?
Freezing forms ice crystals that partially break muscle fibers. Upon thawing and cooking, intracellular water is released. The slower the thawing process (refrigerator), the less water is lost. Fast methods (microwave, hot water) cause more water loss.
Can I make pil pil with frozen cod?
Technically yes, but the result will be mediocre. Pil pil relies on the gelatin released by the cod, and frozen cod has significantly less gelatin than desalted cod. The emulsion does not form correctly. For pil pil, invest in desalted cod.
Does frozen cod have anisakis?
Freezing at -20°C for 72 hours (or -35°C for 15 hours) kills anisakis larvae. Commercial frozen cod is frozen at -30°C or below, so it is safe. If you are going to cook it (>60°C in the center), anisakis is also destroyed by temperature.
Brandade de Salty Cod - 250g
The leap from frozen to desalted is noticeable from the first bite: firmer fibers, deeper flavor, a gelatin that transforms sauces. It's the difference between good cooking and exceptional cooking.
🛒 Products used in this recipe
⭐ 4.9/5 · Cold delivery 24-48h · Since 1990 in Mercat del Ninot
Conclusion
Frozen cod is an honest product: accessible, versatile, and nutritionally excellent. It doesn't pretend to be something it's not. For baked recipes, in sauce, battered, and stews, it performs perfectly. The secret is to thaw it properly (in the fridge, with time), dry it thoroughly, and choose recipes that don't depend on the firm texture or the gelatin that only desalted cod provides.
If you want to make a quality leap, desalted cod is a worthwhile investment. But for everyday use, well-cooked frozen cod is a smart and unpretentious option.
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