Module 12 · Quick Dinners
Crisp Mackerel with Horseradish Cream & Cucumber-Dill Salad
Crisp Mackerel with Horseradish Cream & Cucumber-Dill Salad is a keto dinner with 7 g net carbs, 36 g protein and 52 g fat per serving (640 kcal). It serves 2 and takes 20 minutes in total.
Silver-skinned mackerel fried until crisp, with a sharp horseradish crème fraîche and a cool cucumber and dill salad: Nordic, fresh and full of omega-3.

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Allergens in this Ketogeni recipe: fish, milk, sulphites. Includes listed optional alternatives; check actual ingredient labels and substitutions.
Yield: 2 servings · Active time: 15 min · Total time: 20 min
| Per serving | Amount |
|---|---|
| Net carbohydrates | 7 g |
| Protein | 36 g |
| Fat | 52 g |
| Energy | 640 kcal |
Nutrition figures are estimates, not medical advice. Check ingredient labels and weigh your own portions, especially when tracking a strict daily carbohydrate limit. How to interpret these estimates.
Ingredients
- 4 piece organic mackerel fillets, pin-boned (about 320 g)
- 1 tbsp organic butter
- 100 g organic crème fraîche
- 2 tsp freshly grated horseradish (or 1 tbsp prepared, sugar-free)
- 250 g organic cucumber, thinly sliced
- 10 g organic dill, chopped
- 1 tbsp cider vinegar
- 1 tbsp organic olive oil
- 60 g organic watercress or rocket
- 0.5 tsp sea salt
Step-by-step method
- Salt the cucumber lightly, leave 10 minutes, squeeze and dress with vinegar, oil and dill.
- Stir the horseradish and a pinch of salt into the crème fraîche.
- Pat the mackerel dry and score the skin 3 times. Season.
- Fry skin-side down in the butter over medium-high heat for 3 minutes, pressing gently, until crisp; turn for 30 seconds.
- Serve on the cress with the cucumber salad and a spoonful of horseradish cream.
Chef’s tips
- Mackerel cooks quickly: almost all of the cooking happens on the skin side.
Variations
- Use herring or trout fillets.
- Add a few pickled red onion slices.
Storage
Cucumber salad keeps 2 days; fish is best freshly fried.
Questions and answers
How many net carbs are in Crisp Mackerel with Horseradish Cream & Cucumber-Dill Salad?
One serving has 7 g net carbohydrates, 36 g protein and 52 g fat (640 kcal). The recipe makes 2 servings. These figures are estimates; your own ingredients may differ.
Can I make Crisp Mackerel with Horseradish Cream & Cucumber-Dill Salad ahead, store or freeze it?
Cucumber salad keeps 2 days; fish is best freshly fried.
Which allergens are in Crisp Mackerel with Horseradish Cream & Cucumber-Dill Salad?
It contains fish, milk and sulphites, as listed by Ketogeni for this recipe. Always check the labels of the products you use.
Is Crisp Mackerel with Horseradish Cream & Cucumber-Dill Salad gluten-free?
Yes. None of the ingredients contain gluten. Check the labels of processed ingredients such as stock or spices.
Can I vary Crisp Mackerel with Horseradish Cream & Cucumber-Dill Salad?
Yes. Use herring or trout fillets. Add a few pickled red onion slices.
