Creamy Seafood Chowder

There’s a particular kind of magic that happens when a pot of seafood chowder simmers on the stove. For me, it’s the scent of sautéed onions and celery mingling with the briny promise of the sea that first fills the kitchen, followed by the rich, velvety aroma of cream meeting stock. I’ve been making this chowder for over 5 years, and it never disappoints. After testing this recipe five times, I finally got it just right—a bowl that’s deeply satisfying, loaded with tender seafood, and perfectly balanced so the creaminess enhances rather than masks the delicate flavours of the fish.

Recipe Overview

• Prep Time: 15 minutes
• Cook Time: 35 minutes
• Total Time: 50 minutes
• Servings: 6 generous portions
• Difficulty: Medium

Why You’ll Love This Creamy Seafood Chowder

• Restaurant-quality depth of flavour: The slow-sweated vegetables and careful layering of stock and cream create a broth that tastes like it’s been simmering for hours.
• Perfectly cooked seafood every time: By adding the fish and shellfish at the right moment, they stay tender and succulent, never rubbery or overcooked.
• Rich but not heavy: Using a combination of milk and single cream gives you that luscious, velvety texture without the cloying weight of double cream.
• Customisable to your catch: You can easily swap in your favourite sustainable white fish or use a mix of prawns, mussels, and squid based on what’s fresh at the market.
• One-pot comfort: Everything comes together in a single pot, which means less washing up and more time enjoying the meal with those you love.

Creamy Seafood Chowder

15 min prep  ·  30 min cook  ·  4 servings

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Ingredients You’ll Need

• 50g unsalted butter
• 1 large onion, finely diced (about 200g)
• 2 celery sticks, finely diced
• 2 garlic cloves, minced
• 2 tablespoons plain flour
• 750ml fish stock (or chicken stock for a milder base)
• 300ml whole milk
• 200ml single cream
• 3 medium potatoes (about 400g), peeled and cut into 1cm cubes
• 1 bay leaf
• 1 teaspoon smoked paprika
• 400g skinless white fish fillets (cod, haddock, or pollock), cut into 3cm chunks
• 200g raw peeled prawns
• 150g cooked shelled mussels (or 200g clams in shell, well scrubbed)
• Small handful fresh flat-leaf parsley, finely chopped
• Salt and freshly ground black pepper, to taste

Tip: If you can’t find single cream, use a mix of 100ml double cream and 100ml milk. For a lighter version, replace the cream with evaporated milk and add an extra tablespoon of butter for richness.

How to Make Creamy Seafood Chowder

1. Sweat the vegetables: Melt the butter in a large, heavy-bottomed pot over a medium heat. Add the diced onion and celery, stirring frequently. After about 6-8 minutes, the onion will turn translucent and glossy, and the kitchen will smell sweet and savoury. The celery should have softened but not browned—you’re looking for a pale, golden sheen, not colour.
2. Bloom the aromatics: Stir in the minced garlic and smoked paprika. Cook for 30 seconds until the garlic is fragrant—you’ll smell a warm, smoky note rising from the pot. Immediately add the flour and stir vigorously for a full minute. The mixture will look like a thick, golden paste and will pull away from the sides of the pot.
3. Build the base: Pour in the fish stock in a steady stream, whisking constantly to prevent lumps. The liquid will hiss and steam as it hits the hot pan. Continue whisking until the mixture is smooth and begins to thicken slightly, about 2 minutes. The colour will turn a pale, creamy beige.
4. Cook the potatoes: Add the milk, single cream, bay leaf, and potato cubes. Stir everything together, then bring the chowder to a gentle simmer—you should see small bubbles breaking the surface, not a rolling boil. Reduce the heat to low, partially cover, and let it cook for 15-18 minutes. The potatoes should be fork-tender when pierced, and the liquid will have thickened into a creamy, opaque broth.
5. Add the fish: Gently slide the white fish chunks into the pot, nestling them into the hot liquid. Let them cook undisturbed for 3 minutes. You’ll see the edges of the fish turn opaque white and the flesh flake easily when prodded with a fork. The chowder will release a delicate, sweet fish aroma.
6. Finish with shellfish: Stir in the prawns and mussels (or clams). Cook for 2-3 minutes more. The prawns will curl slightly and turn a vibrant pink, and the mussels will have heated through. If using clams in shells, cover the pot and cook until all shells have opened wide—discard any that remain closed after 5 minutes.
7. Season and serve: Remove the pot from the heat. Discard the bay leaf. Stir in the chopped parsley, then taste the chowder—the colour should be a warm, creamy ivory flecked with green. Season with salt and pepper, remembering that the seafood and stock already carry some saltiness. Ladle into warm bowls and serve immediately.

Tips From My Kitchen

• Low and slow for the base: Don’t rush the sweating of the vegetables. Cooking them gently over medium heat for a full 8 minutes allows their natural sugars to develop, creating a sweeter, more rounded flavour foundation. If you brown them, the chowder will taste scorched rather than rich.
• Whisk the flour in thoroughly: The flour acts as a thickener, but if it’s not cooked for a minute after adding, your chowder will have a raw, pasty taste. You want the mixture to bubble gently and turn a shade darker, which indicates the flour has been properly cooked out.
• Temperature control is key: Once you add the dairy and seafood, keep the heat low. A high boil will cause the cream to separate into greasy specks and the fish to break apart into mush. The chowder should only ever be at a gentle simmer—tiny bubbles, not a violent roll.
• Resting improves flavour: If you have time, let the finished chowder sit off the heat for 5 minutes before serving. This allows the flavours to meld together and the texture to settle into a silky, cohesive whole. Stir once gently before ladling.
• Choose your fish wisely: Firm-fleshed white fish like cod or haddock hold their shape beautifully. Avoid delicate fish like sole or plaice, which will disintegrate. For the prawns, raw ones are essential—pre-cooked prawns will turn rubbery when reheated.
• Make it ahead: This chowder tastes even better the next day. Cool it completely, then refrigerate in an airtight container for up to 48 hours. Reheat gently over low heat, adding a splash of milk if it has thickened too much.

Common Mistakes to Avoid

• Overcrowding the pan: Adding too much seafood at once can lower the temperature of the chowder, causing the fish to steam rather than poach gently. This leads to a watery, unevenly cooked result. Add the seafood in batches if your pot is crowded, or use a wider pot to give everything room.
• Wrong temperature: Cooking the chowder at too high a heat is the most common error. A rolling boil will break the emulsion of the cream, leaving you with a greasy, curdled-looking soup. Keep the heat low and steady—if you see large, aggressive bubbles, turn it down immediately.
• Skipping the rest time: It’s tempting to serve straight away, but the resting period allows the starches from the potatoes to fully integrate with the cream, giving the chowder its signature velvety texture. Without it, the broth can seem thin and separate on the plate.

What to Serve With Creamy Seafood Chowder

• Crusty sourdough bread or warm Irish soda bread, perfect for soaking up every last drop
• A simple green salad with a lemon vinaigrette to cut through the richness
• Steamed green beans or tenderstem broccoli for a pop of colour and freshness
• A side of Air Fryer Fish Fillets Crispy Healthy if you want an extra seafood course

Frequently Asked Questions

Creamy Seafood Chowder

A rich and comforting chowder loaded with white fish, prawns, and mussels in a creamy, smoky broth with tender potatoes.

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Prep Time 15 minutes mins

Cook Time 30 minutes mins

Total Time 45 minutes mins

Servings: 4 servings

Course: Main Course

Cuisine: American

Calories: 350

Ingredients Method Notes

Ingredients

  

• 50 g unsalted butter
• 1 large onion finely diced (about 200g)
• 2 celery sticks finely diced
• 2 garlic cloves minced
• 2 tablespoons plain flour
• 750 ml fish stock or chicken stock for a milder base
• 300 ml whole milk
• 200 ml single cream
• 3 medium potatoes about 400g, peeled and cut into 1cm cubes
• 1 bay leaf
• 1 teaspoon smoked paprika
• 400 g skinless white fish fillets cod, haddock, or pollock, cut into 3cm chunks
• 200 g raw peeled prawns
• 150 g cooked shelled mussels or 200g clams in shell, well scrubbed
• Small handful fresh flat-leaf parsley finely chopped
• Salt and freshly ground black pepper to taste

Method

 

1. Sweat the vegetables: Melt the butter in a large, heavy-bottomed pot over a medium heat. Add the diced onion and celery, stirring frequently. After about 6-8 minutes, the onion will turn translucent and glossy, and the kitchen will smell sweet and savoury. The celery should have softened but not browned—you’re looking for a pale, golden sheen, not colour.
2. Bloom the aromatics: Stir in the minced garlic and smoked paprika. Cook for 30 seconds until the garlic is fragrant—you’ll smell a warm, smoky note rising from the pot. Immediately add the flour and stir vigorously for a full minute. The mixture will look like a thick, golden paste and will pull away from the sides of the pot.
3. Build the base: Pour in the fish stock in a steady stream, whisking constantly to prevent lumps. The liquid will hiss and steam as it hits the hot pan. Continue whisking until the mixture is smooth and begins to thicken slightly, about 2 minutes. The colour will turn a pale, creamy beige.
4. Cook the potatoes: Add the milk, single cream, bay leaf, and potato cubes. Stir everything together, then bring the chowder to a gentle simmer—you should see small bubbles breaking the surface, not a rolling boil. Reduce the heat to low, partially cover, and let it cook for 15-18 minutes. The potatoes should be fork-tender when pierced, and the liquid will have thickened into a creamy, opaque broth.
5. Add the fish: Gently slide the white fish chunks into the pot, nestling them into the hot liquid. Let them cook undisturbed for 3 minutes. You’ll see the edges of the fish turn opaque white and the flesh flake easily when prodded with a fork. The chowder will release a delicate, sweet fish aroma.
6. Finish with shellfish: Stir in the prawns and mussels (or clams). Cook for 2-3 minutes more. The prawns will curl slightly and turn a vibrant pink, and the mussels will have heated through. If using clams in shells, cover the pot and cook until all shells have opened wide—discard any that remain closed after 5 minutes.
7. Season and serve: Remove the pot from the heat. Discard the bay leaf. Stir in the chopped parsley, then taste the chowder—the colour should be a warm, creamy ivory flecked with green. Season with salt and pepper, remembering that the seafood and stock already carry some saltiness. Ladle into warm bowls and serve immediately.

Notes

For a milder base, substitute chicken stock for fish stock. If using clams in shells, discard any that remain closed after 5 minutes of cooking.

I’d love to hear how your creamy seafood chowder turns out. Drop a comment below to share your experience—did you use a different fish, or add a personal twist? If you’re looking for more hearty meals to warm your week, you might enjoy this Slow Cooker Beef Ragu Over Pappardelle or a lighter Ground Beef And Zucchini Skillet Low Carb. Happy cooking!