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Smoked Trout Croquettes

These smoked trout croquettes are a sophisticated and flavourful take on a classic savoury snack. Combining flakey smoked fish with fluffy mashed potatoes, sharp horseradish, and a hint of melted mozzarella, they offer a wonderful depth of flavour and a satisfying crunch. The panko breadcrumb coating ensures a light, golden exterior that contrasts beautifully with the rich, creamy centre. This high-protein dish is an excellent way to elevate the humble potato into something truly special for guests.

Perfect as a stylish dinner party starter or a substantial canapé, these croquettes can be prepared up to two days in advance, making them an ideal choice for stress-free hosting. The addition of fresh chives and a squeeze of bright lemon juice balances the richness of the trout perfectly. Serve them piping hot alongside a crisp green salad or a simple tartare sauce for a delicious light lunch or evening appetiser.

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Ingredients for Smoked Trout Croquettes

  • 6 medium russet potatoes (about 1.1kg total), peeled, quartered

  • Kosher salt

  • 60g (1/2 stick) unsalted butter, cut into pieces

  • 30g Parmesan, finely grated (about 1/4 cup)

  • 1/4 cup chopped chives

  • 2 tablespoons prepared horseradish

  • 1/2 teaspoons freshly ground black pepper

  • 4 large eggs, lightly beaten, divided

  • 230g smoked trout, skin and any large pin bones removed, shredded

  • 60g low-moisture mozzarella, coarsely grated (about 60g )

  • 220g panko (Japanese breadcrumbs)

  • Canola or vegetable oil (for frying

  • about 1450ml )

  • Lemon wedges (for serving)

Cover potatoes with cold salted water in a large pot. Bring to a boil over medium, covered, then reduce heat as needed to maintain a simmer until potatoes are tender, 20–30 minutes. Drain and transfer to a large bowl.

Mash warm potatoes with butter, then stir in Parmesan, chives, horseradish, pepper, 2 beaten eggs, and 1/2 teaspoons salt until smooth. Fold in trout and mozzarella. Form potato mixture into about 60 round croquettes (about 2 tablespoons each).

Place remaining 2 beaten eggs in a shallow bowl. Place panko in another shallow bowl. Dip 1 croquette into egg, letting excess drip off, then roll in panko to coat. Transfer to a parchment-lined rimmed baking sheet. Repeat with remaining croquettes.

Pour oil into a large pot to a depth of 4". Heat over medium-high until it sizzles when you toss in a pinch of panko or a deep-fry thermometer registers 350°. Working in batches, fry croquettes, turning occasionally, until golden brown, 4–5 minutes per batch. Transfer to paper towels to drain; season with salt. Serve immediately with lemon wedges alongside.

Do Ahead: Croquettes can be formed and coated 2 days ahead. Cover and chill on baking sheet.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 28 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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