Colin’s Smoked Mackerel Croquettes are a gourmet treat that combines delicate white fish, rich smoked mackerel, and a hint of aromatic spices. Perfectly golden and crispy on the outside, with a creamy and flavorful filling, these croquettes make a sophisticated appetizer or a satisfying snack.

Full Recipe:

Ingredients

500g firm white fish fillets, cut into 4 pieces
2 tbsp sea salt flakes
2 fresh thyme sprigs
2 garlic cloves, crushed
3 lemons, rind finely grated
1 (275g) whole smoked mackerel or kipper, head removed
500ml (2 cups) fish stock
1 tsp fennel seeds, toasted
1 tsp coriander seeds, toasted
580ml (2 1/3 cups) milk
150g butter
150g (1 cup) plain flour
100g plain flour (extra)
1 tbsp good-quality horseradish sauce or cream
2 tsp hot English mustard
200g fresh breadcrumbs
6 eggs
Vegetable oil (for deep-frying)
Horseradish crème fraîche (to serve)

Directions

Marinate the Fish:
- Grease a 20x30cm slice pan and line with baking paper.
- In a bowl, combine white fish, salt, thyme, garlic, and rind from 2 lemons. Cover with plastic wrap and refrigerate for 2 hours or overnight.
Prepare the Smoked Mackerel and Stock:
- Remove and reserve the skin and bones from the smoked mackerel; discard the bloodline. Finely chop the flesh and set aside.
- Boil fish stock with the reserved skin and bones. Let it infuse off the heat for 15 minutes, then strain and discard solids.
Cook the Fish:
- In a saucepan, combine fennel seeds, coriander seeds, white fish, and 2 cups of milk. Simmer gently (do not boil). Remove from heat and let stand for 10 minutes until the fish flakes easily.
- Flake the fish into a bowl and strain the milk mixture into the fish stock.
Make the Sauce and Fill the Pan:
- Melt butter in a saucepan over low heat, add flour, and cook for 1 minute, whisking constantly. Remove from heat and gradually add the stock mixture while whisking until smooth.
- Cook the mixture over heat, stirring, for 5-10 minutes until thickened. Remove from heat and stir in the flaked fish, smoked mackerel, horseradish, mustard, remaining lemon rind, and juice from 1 lemon. Season to taste.
- Pour into the prepared pan and refrigerate for 2 hours or overnight until firm.
Shape and Coat the Croquettes:
- Roll the mixture into 32 balls. Set up bowls with breadcrumbs, extra flour, and a whisked egg-and-milk mixture. Roll each ball in flour, then in the egg mixture, then breadcrumbs. Repeat dipping in egg mixture and breadcrumbs to double coat.
- Place croquettes on a tray and refrigerate for 20 minutes.
Fry the Croquettes:
- Heat vegetable oil in a saucepan to 160°C. Fry croquettes in batches for 1-2 minutes until golden. Drain on paper towels.
- Serve warm with horseradish crème fraîche.

Nutrients (Per serving, assuming 8 servings):

Calories: 320 kcal
Protein: 14 g
Carbohydrates: 20 g
Fat: 21 g
- Saturated Fat: 10 g
Cholesterol: 120 mg
Sodium: 680 mg
Fiber: 1 g
Sugar: 2 g

Enjoy these indulgent croquettes as a sophisticated appetizer or a savory snack that’s bursting with flavor and texture!

The Art of the Croquette

Croquettes are a classic dish found in various cuisines worldwide, each adding its unique twist. Originating in France, croquettes were traditionally a way to use up leftover meat or fish, transforming humble ingredients into an elegant dish. Colin’s Smoked Mackerel Croquettes elevate this concept by combining fresh, flavorful ingredients with meticulous preparation techniques, resulting in a dish that is both comforting and gourmet.

Why Smoked Mackerel?

Smoked mackerel is the star ingredient of this dish, and for a good reason:

Rich Flavor: The smoky, savory taste of mackerel pairs beautifully with the creamy filling of the croquettes.
Nutritional Benefits: Packed with omega-3 fatty acids, mackerel is a heart-healthy choice that also provides high-quality protein and essential vitamins.
Versatility: Smoked mackerel’s bold flavor profile complements the mildness of white fish, creating a harmonious blend of textures and tastes.

The Role of Aromatics and Spices

The addition of fennel and coriander seeds, fresh thyme, garlic, and lemon zest brings depth and complexity to the dish. These aromatics not only enhance the flavor of the fish but also add layers of warmth and brightness that elevate the overall taste. The toasted spices, in particular, infuse the fish with a subtle, nutty aroma that complements the smokiness of the mackerel.

A Creamy, Flavorful Filling

The filling of these croquettes is a rich and luscious blend of flaked fish, smoked mackerel, and a velvety roux-based sauce. Here’s why it stands out:

Perfect Balance: The creamy sauce binds the fish together while allowing the distinct flavors of mackerel and white fish to shine.
Horseradish and Mustard: These ingredients add a hint of heat and tang, cutting through the richness of the filling and providing a satisfying contrast.
Citrus Notes: Lemon zest and juice brighten the flavor profile, making the croquettes feel fresh and light.

The Crispy Exterior

The hallmark of a great croquette is its crispy, golden exterior, and Colin’s recipe achieves this with a double coating of breadcrumbs. This technique ensures a crunchy outer layer that contrasts beautifully with the creamy filling. Frying the croquettes at the right temperature—160°C—ensures they are perfectly golden and evenly cooked.

Why These Croquettes are a Show-Stopper

Sophistication: The combination of smoked mackerel, delicate white fish, and aromatic spices elevates this dish into a gourmet treat.
Texture Contrast: The crispiness of the coating paired with the creamy filling makes every bite a sensory delight.
Versatility: These croquettes are suitable for a wide range of occasions, from formal dinners to casual gatherings.
Make-Ahead Friendly: The filling can be prepared and chilled ahead of time, making it easy to assemble and fry the croquettes when needed.

Customizing the Recipe

This recipe is incredibly versatile and can be adapted to suit your preferences:

Different Fish: Substitute the white fish with cod, haddock, or salmon for a unique twist.
Cheese Addition: Add a small amount of grated Parmesan or Gruyere cheese to the filling for extra richness.
Herb Variations: Swap thyme for dill or parsley for a fresh flavor variation.
Gluten-Free: Use gluten-free breadcrumbs and flour to make the dish suitable for gluten-intolerant guests.

Serving Suggestions

Colin’s Smoked Mackerel Croquettes are a versatile dish that pairs beautifully with various accompaniments:

Horseradish Crème Fraîche: A dollop of horseradish crème fraîche adds a cooling contrast to the warm, crispy croquettes.
Salad: Serve with a fresh green salad dressed with a tangy vinaigrette to balance the richness of the croquettes.
Dipping Sauce: Pair with aioli, tartar sauce, or a zesty lemon dill sauce for an extra burst of flavor.
Wine Pairing: A crisp white wine like Sauvignon Blanc or a dry sparkling wine complements the smoky, savory flavors.

Tips for Perfect Croquettes

Chill the Filling: Refrigerating the filling allows it to firm up, making it easier to shape and coat.
Double-Coating: A double layer of breadcrumbs ensures a perfectly crisp and golden exterior.
Monitor Frying Temperature: Keeping the oil at 160°C ensures the croquettes cook evenly without absorbing excess oil.
Don’t Overcrowd: Fry the croquettes in small batches to maintain the oil’s temperature and achieve consistent results.
Use Fresh Ingredients: High-quality fish, fresh herbs, and good-quality horseradish make all the difference in flavor.

Why This Dish is Perfect for Entertaining

Colin’s Smoked Mackerel Croquettes are an excellent choice for entertaining, thanks to their impressive presentation and crowd-pleasing flavors. The bite-sized portions make them easy to serve as appetizers or canapés, while their gourmet taste ensures they’ll be the highlight of any gathering. The ability to prepare the filling and shape the croquettes ahead of time also makes them convenient for hosting.

Storing and Reheating

If you have leftovers, store the croquettes in an airtight container in the refrigerator for up to two days. Reheat them in a preheated oven at 180°C for 10–12 minutes to restore their crispiness. Avoid microwaving, as this can make the exterior soggy.

Conclusion: A Recipe to Savor

Colin’s Smoked Mackerel Croquettes are a testament to the art of combining simple ingredients with sophisticated techniques. With their crispy, golden exterior and creamy, flavorful filling, these croquettes offer a gourmet experience that’s perfect for any occasion. Whether you’re looking to impress guests or treat yourself to an indulgent snack, this recipe is guaranteed to deliver. Try it today and discover the magic of this elegant yet approachable dish!