Easy Instant Pot Seafood Broth (Rich & Flavorful!)

Stews & Soups

March 11, 2026

Unlock the Secret to Incredible Flavor: Homemade Seafood Broth

Forget store-bought stocks! There’s nothing quite like the rich, nuanced flavor of a homemade seafood broth, and with the Instant Pot, it’s practically effortless. This recipe transforms simple ingredients into a fragrant “liquid gold” that will become the foundation for your most impressive soups, risottos, and seafood sauces. It’s a simple, dump-and-go recipe that yields a professional-quality result every time.

Ingredients

• 2 cups (approx. 1 lb / 450g) cod fillets
• 1 cup (approx. 1/2 lb / 225g) clams, scrubbed
• 1 cup (approx. 1/2 lb / 225g) mussels, scrubbed and debearded
• 1 large carrot, roughly chopped
• 1 large yellow onion, roughly chopped
• 1 celery stalk, roughly chopped
• 10 garlic cloves, smashed
• 1 tsp black peppercorns
• 12 cups (2.8 L) filtered water

Instructions

1. Directions
2. In the inner pot of your Instant Pot, combine the cod fillets, clams, mussels, carrot, onion, celery, garlic, peppercorns, and water.
3. Secure the lid and turn the pressure valve to the “Sealing” position.
4. Select the “Manual” or “Pressure Cook” setting and cook on “Low Pressure” for 30 minutes.
5. Once the cooking cycle is complete, let the pressure release naturally. Do not use the quick release method.
6. Carefully remove the lid. Strain the broth through a fine-mesh sieve into a large heatproof bowl, discarding the solids.
7. Allow the broth to cool completely at room temperature.
8. Transfer the cooled broth to an airtight container and refrigerate overnight.
9. The next day, simply skim off and discard any solidified fat that has risen to the top.
10. Use immediately, or store in the refrigerator for 5-7 days or in the freezer for up to 4 months.

Nutritional Information

• Per Serving: Calories 72 | Total Fat 0.7g | Net Carbs 0.45g | Protein 1.6g | Fiber 10.6g

Pro Tips

• Pro-Tips for the Perfect Broth
• For a deeper, roasted flavor, use the “Sauté” function on your Instant Pot to lightly brown the onion, carrot, and celery in a bit of olive oil before adding the remaining and pressure cooking.
• Add a bay leaf and a few sprigs of fresh thyme or parsley to the pot for a more complex, herbaceous aroma.
• Freeze the finished broth in ice cube trays. Once solid, transfer the cubes to a freezer bag for perfectly portioned flavor bombs you can add to sauces, grains, or single servings of soup.
• For an exceptionally clear broth, strain it a second time through a sieve lined with cheesecloth.

FAQ

Q: How can I make my seafood broth have a deeper flavor
A: For a richer, roasted flavor, use the Instant Pot’s ‘Sauté’ function to lightly brown the onion, carrot, and celery before adding the other ingredients. You can also add a bay leaf and fresh thyme or parsley for a more complex aroma.

Q: What is the best way to store homemade seafood broth
A: Store the broth in an airtight container in the refrigerator for 5-7 days. For longer storage, you can freeze it for up to 4 months. A great tip is to freeze it in ice cube trays for easy, pre-portioned amounts.

Q: Why should I use natural release instead of quick release for this broth
A: Using a natural pressure release is crucial for a clear broth. It allows the contents to settle, preventing the solids from breaking up and making the broth cloudy. A quick release can agitate the broth and result in a murky finish.

Q: How do I get an exceptionally clear seafood broth
A: After the initial straining through a fine-mesh sieve, you can strain the broth a second time through a sieve lined with cheesecloth. This will catch any remaining small particles, resulting in a very clear liquid.

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