RecipeShare Test Kitchen

A fresh potato salad with smoked mackerel, radish, green apple, herbs and a mustard dressing.
This salad works because it balances several strong elements at once: oily smoked fish, starchy potatoes, crisp radish and sharp apple. The mustard dressing ties them together without needing much else.
Smoked mackerel is rich, so the fresh ingredients are doing real work here rather than acting as garnish. Thin slices of apple and radish keep each bite lighter and stop the potatoes from dominating the plate.
For balanced serving guidance, this can stand as a full lunch on its own. If you want to stretch it further, add more green beans or extra salad leaves instead of increasing the potatoes.
Potato salads can become heavy very quickly, especially when smoked fish is part of the mix. The apple, radish, and green beans are what keep this one lively. They add crunch, freshness, and enough sharpness that the oily fish and soft potatoes do not blur together.
The mustard dressing is deliberately simple because the mackerel already brings a lot of flavor. A more complicated dressing would compete with the fish instead of connecting the salad components.
This works particularly well for lunch because it feels substantial without needing bread or an extra main. It can also sit alongside a smaller green salad if you want a slightly lighter plate.
If making ahead, fold the smoked fish through close to serving so the flakes stay more intact and the salad keeps a cleaner texture.
The salad is also best when the potatoes are cool but not fridge-hard. That slightly softer texture helps them absorb the dressing and sit more naturally with the smoked fish, apple, and beans.
A fresh potato salad with smoked mackerel, radish, green apple, herbs and a mustard dressing.

Roast the potatoes instead of boiling if you want a firmer, crisp-edged salad.
A little horseradish works well if you want a sharper finish.
Smoked trout or poached chicken can stand in for the mackerel.
We use affiliate links, which may earn us a small commission at no extra cost to you.
Boil the potatoes until tender, then drain and cool slightly.
Blanch the green beans briefly and cool them in cold water.
Slice the radishes, apple and spring onions.
Whisk together the olive oil, Dijon mustard and wholegrain mustard.
Cut the potatoes if large, then combine them with the beans, radish, apple and spring onions.
Add the flaked mackerel and chopped dill.
Toss gently with the dressing and serve chilled or at room temperature.
5/3/2025
Macros + calories?
5/3/2025
I can’t eat mackerel. What would you recommend to replace it?
5/3/2025
I love it with a touch of horseradish sauce
Create and edit your own recipes, import from most websites, plan your week, and build smart grocery lists.
Import recipes from most websites
Create and edit your own recipes
Plan your week with the Meal Planner
Mark favourites for quick access
Build grocery lists from your meal plan
Tick off pantry items you already have
Serving Size: 1 plate (approx. 330g)
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Add your personal creations and build your own recipe collection.