Poached Salmon in Horseradish Milk with Dill

Name: Poached Salmon in Horseradish Milk with Dill
Prep time: 12 min
Cook time: 22 min
Total time: 34 min
Yield: 4 servings
Cuisine: American
Ingredients: 240 ml milk (1 cup 1 tablespoon); 20 ml creamy horseradish (about 1 1/3 tbsp from jar); 5 ml arrowroot powder (1 teaspoon); 600 g skinless salmon fillet, cut into 4 portions; Salt and freshly cracked black pepper; 40 ml freshly chopped dill (about 2 1/2 tbsp)

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By Emma

Certified Culinary Professional

Published on 02 August 2025 · Recipe tested & approved

Poached salmon fillets in creamy horseradish milk with fresh dill. Four tender skinless portions simmered gently in milk thickened with arrowroot for a smooth, elegant sauce.

Prep: 12 min

Cook: 22 min

Total: 34 min

Servings: 4 servings

salmon seafood easy dinner one pot main dish

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Salmon goes in milk. Not water. Not wine. Just milk and horseradish and it works somehow. Twelve minutes to start the sauce. Then the fish. Done in thirty-four minutes flat.

Why You’ll Love This One Pot Salmon Dinner

Takes thirty-four minutes total — actually less if you move fast. Salmon dinner on a weeknight without the fuss.

The whole thing happens in one pot. No separate pan for vegetables. No multiple dishes stacking up. Just one thing to clean.

Horseradish cuts through the richness. Not spicy like you’d think. Just sharp enough that it tastes like something. Dill finishes it and it gets bright.

Creamy without being heavy. The milk thickens just enough. Tastes like you planned this out. You didn’t.

Cold salmon from this tastes better the next day. Not many things work that way. This does.

What You Need for Poached Salmon Fillets with Horseradish Cream Sauce

Milk. Whole milk works. Two-percent fine. Not skim — it gets thin.

Creamy horseradish from a jar. The kind in the condiment aisle. Not the hot kind in a tube. Not powder. The actual creamy stuff. About a tablespoon and a third.

Arrowroot powder. Thickens faster and clearer than cornstarch. Not cornstarch. Different texture. Arrowroot holds.

Salmon. Skinless fillets. Six hundred grams total — four portions. Doesn’t have to be perfect pieces. Cut them yourself or get them cut.

Salt. Cracked black pepper. Fresh dill. Chopped. About two and a half tablespoons.

That’s it. Nothing else needed.

How to Make Creamy Salmon Poached in Horseradish Milk

Start off the heat. Pour the milk into a pot — not on the stove yet. Add the horseradish. Whisk in the arrowroot. Keep going until there’s no lumps at all. This matters. Lumps stay lumps.

Now turn it to medium-low. Not medium. Medium-low. Stir constantly. The milk wants to scorch on the bottom if you don’t. Keep the whisk moving. You’ll feel when it starts to thicken — maybe three minutes, maybe five. Depends on your stove.

Tiny bubbles form at the edges first. Not a boil. Just bubbles. That’s when you season. Salt. Pepper. Taste it. It should taste sharp and creamy at the same time.

How to Get Salmon Tender and the Sauce Perfect

Gently nestle the salmon in. Four pieces. Don’t drop them. Just lay them in the warm milk. Lower the heat to very low. This is poaching. Not boiling. The milk barely moves.

Four minutes per side. Watch the color change. The fish goes from bright pink to pale. That’s how you know. Press it lightly with your finger — it should give a little but not fall apart.

Around minute six or seven, taste the sauce. Adjust now if you need more horseradish or salt. The dill goes in at the end so don’t count on it to fix things mid-cook.

Milk wants to get a skin on top sometimes. Just stir it gently. Breaks it up. Doesn’t hurt anything. Watch the heat the whole time — if it bubbles too hard it curdles. Low. Keep it low.

Transfer the salmon to plates carefully. It’ll be soft. Use a spatula. Spoon the horseradish milk over everything. Dill on top. Serve it right now.

One Pot Salmon Tips and Common Mistakes

Don’t skip whisking the arrowroot in cold milk. It dissolves in cold but clumps if you dump it in hot. Same with the horseradish. Cold milk first.

The milk will thicken as it cools. It looks thinner than you want when it’s hot. Trust it. It sets up.

Overheating kills everything. The milk splits. The salmon gets rubbery. Low heat from the start. Actually low. Not “medium-low that feels medium.”

If you forget about it and the milk boils hard, it’s probably done for. The texture changes. Start over. Doesn’t take that long anyway.

Salmon thickness matters slightly. Thin fillets go faster. Thick ones need maybe an extra minute per side. Poke it. You’ll know.

You can poach the salmon, cool it, then warm the whole thing up later. Works cold too. Horseradish milk gets thicker when cold — good texture for leftovers.

Poached Salmon in Horseradish Milk with Dill

By Emma

Prep:

12 min

Cook:

22 min

Total:

34 min

Servings:

4 servings

Ingredients

240 ml milk (1 cup 1 tablespoon)
20 ml creamy horseradish (about 1 1/3 tbsp from jar)
5 ml arrowroot powder (1 teaspoon)
600 g skinless salmon fillet, cut into 4 portions
Salt and freshly cracked black pepper
40 ml freshly chopped dill (about 2 1/2 tbsp)

Method

1 Off heat, whisk milk with horseradish and arrowroot powder until dissolved; no lumps. Slowly warm over medium-low, stir constantly to prevent scorching. When tiny bubbles form at edges and milk fools around a bit, season well with salt and pepper.
2 Gently nestle salmon portions in the barely simmering milk mixture. Lower heat to very gentle poach. Let each side cook about 4 minutes, skimming or stirring milk gently to avoid skin formation. Watch salmon turn pale pink and firm but tender when pressed lightly.
3 Taste the milk sauce mid-cook; adjust horseradish or seasoning as needed to avoid overpowering bit — fresh dill will later brighten the finish.
4 Transfer salmon portions carefully to plates. Spoon horseradish milk over the fish with fresh dill sprinkled on top. Serve immediately alongside sautéed vegetables like asparagus or green beans and nutty wild rice or quinoa.
5 If milk starts to bubble too strongly or boil, reduce heat to avoid curdling. Arrowroot thickens quicker and clearer than cornstarch but overheated milk still splits.
6 Alternatively, try replacing dill with tarragon for a sharper note, or swap milk for half coconut milk plus water for a dairy-free twist. Keep poaching low and slow to retain silky texture.