Smoked Trout and Dill Potato Salad

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Smoked trout and potatoes have a natural affinity. The earthy, starchy base of waxy potatoes holds up to the bold, briny flavor of hot-smoked trout in a way that a lighter green salad never quite does.

The dressing is crème fraîche thinned with lemon juice, a little Dijon, and plenty of fresh dill. It clings rather than pools, and the acidity cuts through the richness of the fish cleanly.

I dress the potatoes while they’re still warm so they absorb the flavor as they cool. By the time you’re ready to eat, the whole salad has pulled together into something that eats more like a composed dish than a basic side.

This works well as a light lunch on its own or alongside dark rye bread and sliced cucumber. It also holds well in the fridge for a day, which makes it practical for meal prep or a picnic spread.

Why You’ll Love This Recipe

• No oven needed, just one pot and a bowl
• Dressing doubles as a dip for extra bread
• Holds well for next-day lunches without going soggy
• High in protein from smoked trout with minimal prep

Ingredient Notes

• smoked trout fillets: Hot-smoked trout (the kind sold vacuum-packed, already cooked) works best here. Cold-smoked trout is too delicate and can turn mushy when mixed. Smoked mackerel is the closest substitute if trout isn’t available.
• waxy potatoes: Varieties like Yukon Gold, Charlotte, or baby new potatoes hold their shape after boiling. Floury potatoes like russets will break apart in the dressing. Aim for roughly 3 cm / 1.2-inch pieces for even cooking.
• crème fraîche: Full-fat crème fraîche gives the dressing body and a mild tang. Sour cream is a direct 1:1 swap. For a dairy-free version, use a thick plain coconut yogurt, though the flavor will be slightly sweeter.
• fresh dill: Fresh dill is strongly preferred here because dried dill loses the grassy brightness that balances the smoky fish. If you only have dried, use 1 tsp and add a small handful of flat-leaf parsley to compensate.
• Dijon mustard: Dijon adds depth and helps emulsify the dressing slightly. Whole-grain mustard works too and adds a mild texture contrast. Avoid yellow mustard, which is too sharp and sweet.
• capers: Small capers in brine add a briny pop that works well with both the fish and the dill. Rinse them before using. You can skip them if you prefer a milder salad, or substitute finely chopped cornichons.

Smoked Trout and Dill Potato Salad

A warm-dressed potato salad with flaked smoked trout, fresh dill, and a crème fraîche-lemon dressing. Comes together in 40 minutes.

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Prep Time 15 minutes mins

Cook Time 25 minutes mins

Total Time 40 minutes mins

Servings: 4 servings

Calories: 390

Ingredients Method Notes

Ingredients

  

Salad

• 800 g waxy potatoes (Charlotte, new potatoes, or Yukon Gold) cut into 3 cm pieces
• 250 g hot-smoked trout fillets skin removed, flesh flaked into large pieces
• 2 tbsp capers in brine rinsed and drained
• 1 small red onion thinly sliced
• 20 g fresh dill roughly chopped, plus extra sprigs for garnish
• to taste flaky sea salt
• to taste black pepper freshly ground

Crème Fraîche Dressing

• 120 g crème fraîche full-fat
• 2 tbsp lemon juice freshly squeezed, about 1 lemon
• 1 tsp lemon zest
• 1 tsp Dijon mustard
• 1 tbsp extra-virgin olive oil
• 0.5 tsp salt
• 0.25 tsp black pepper freshly ground

Method

 

Cook the Potatoes

1. Place the potato pieces in a large saucepan and cover with cold water. Add 1 tsp salt per liter of water and bring to a boil over high heat.
2. Reduce heat to medium and simmer for 15 to 18 minutes, until the potatoes are tender when pierced with a knife but still hold their shape. Drain in a colander and leave to steam-dry for 2 minutes.

Make the Dressing

1. While the potatoes cook, whisk together the crème fraîche, lemon juice, lemon zest, Dijon mustard, and olive oil in a small bowl until smooth. Season with the salt and black pepper. Taste and adjust lemon juice if needed. The dressing should taste bright and slightly sharp.

Dress and Assemble

1. Transfer the warm (not hot) potatoes to a large mixing bowl. Pour two-thirds of the dressing over the potatoes and fold gently with a spatula until coated. Leave to rest for 5 minutes so the potatoes absorb the dressing.
2. Add the sliced red onion and capers to the bowl. Fold again gently.
3. Add the flaked smoked trout and chopped dill. Fold once or twice more, keeping the trout pieces large. Drizzle over the remaining dressing.
4. Taste and adjust salt, pepper, or lemon juice. Transfer to a serving plate or bowl. Garnish with extra dill sprigs and a grind of black pepper. Serve at room temperature.

Notes

Fold the trout in last and handle it gently. Over-mixing breaks up the fish into small shreds and you lose the textural contrast that makes this salad work.

Tips for Success

• Dress the potatoes while they’re still warm so they absorb the lemon-crème fraîche flavors as they cool.
• Flake the trout into large pieces rather than small shreds so you get a distinct bite of fish in each forkful.
• Salt the potato cooking water generously, about 1 tsp per liter, for well-seasoned potatoes from the inside.
• Taste the dressing before adding the trout. It should taste slightly over-seasoned on its own to balance the starchy potatoes.
• Add the trout and dill at the end after the potatoes have cooled to just warm, not hot, to prevent wilting the herbs.

Variations

• Swap smoked trout for hot-smoked salmon and add thinly sliced fennel for an anise note.
• Add two soft-boiled eggs per person and a handful of watercress to turn this into a fuller main plate.
• Use a horseradish-spiked crème fraîche instead of Dijon for a sharper, more peppery dressing.

Storage and Reheating

Store leftover salad in an airtight container in the fridge for up to 2 days. The potatoes will absorb more dressing overnight, so stir in a spoonful of crème fraîche and a squeeze of lemon before serving to loosen it back up.

This salad is best eaten at room temperature, not straight from the fridge. Take it out 15 to 20 minutes before serving so the dressing softens and the flavors come forward again.

Don’t freeze this salad. Cooked waxy potatoes turn grainy after freezing, and crème fraîche-based dressings separate on thawing.

Serving Suggestions

Serve alongside dark rye crispbreads or buttered sourdough or herb toast. The crunchy bread is a good contrast to the soft potatoes and works well for scooping up any extra dressing.

For a fuller meal, add a few thin slices of cucumber and a handful of peppery arugula on the side. A cold glass of dry Riesling or a light Czech lager pairs cleanly with the smoky fish and dill.

This also works as part of a larger spread with pickled beets, hard-boiled eggs, and sliced radishes alongside a bright, sharply dressed salad, a Scandinavian-style table that lets each element stay distinct rather than mixing everything together.

FAQ

Why does my smoked trout potato salad taste bland after refrigerating overnight?

Cold mutes acidity and salt, so the dressing always tastes flatter straight from the fridge. Stir in a small squeeze of fresh lemon juice and a pinch of flaky salt just before serving to bring the flavor back.

Can I use smoked salmon instead of smoked trout in this potato salad?

Hot-smoked salmon works well as a 1:1 swap since it has a similar flaky texture and smoky depth. Cold-smoked salmon (the silky, sliced kind) is too soft and tends to dissolve into the dressing rather than holding its shape.

How far ahead can I make this smoked trout and dill salad for a picnic?

You can boil and dress the potatoes up to 8 hours ahead and keep them covered in the fridge. Add the flaked trout, capers, and fresh dill within 1 to 2 hours of serving so the fish stays intact and the herbs stay bright.

What kind of potatoes hold up best in a dressed potato salad without falling apart?

Waxy varieties like Charlotte, new potatoes, or Yukon Gold are the right choice here. They have lower starch content, so they hold their edges after boiling and don’t absorb so much dressing that they become mushy.

Is smoked trout potato salad gluten-free?

This recipe is naturally gluten-free as written. Just check the label on your smoked trout, as some commercial brands use wheat-based fillers or marinades, though most plain hot-smoked fillets are gluten-free.

How do I make this smoked trout potato salad dairy-free?

Replace the crème fraîche with a thick, unsweetened coconut yogurt or a plain cashew-based yogurt at a 1:1 ratio. The dressing will be slightly less tangy, so add an extra half-teaspoon of lemon juice to compensate.