Easy Smoked Mackerel Pâté with Horseradish Butter
A sophisticated yet simple smoked mackerel pâté that transforms humble canned fish into an elegant appetizer. Blended smooth with melted butter and bright lemon zest, the pâté gains complexity from a single spring onion and tangy horseradish. A gilded horseradish-butter topping with fresh parsley adds richness and visual appeal. The peppery heat of horseradish cuts through the mackerel's oiliness while lemon keeps everything fresh. Perfect for entertaining without fuss, this pâté suits casual gatherings or dinner parties. Serve chilled with crusty French bread and extra horseradish on the side. What sets this version apart is its streamlined ingredient list and the clever two-butter technique—one melted into the base for smoothness, one whipped with horseradish for topping—creating textural contrast and built-in flavor balance.
Ingredients
- 1 ¾ tbsp unsalted butter, melted
- lemon zest, from 1/2 lemon
- 5 ½ oz smoked mackerel, split fillets, skinnedsmoked salmon1:1oily fishadds fish
milder flavor, higher cost
- 1 spring onion green onions, roughly chopped
- 1 tbsp unsalted butter, plus extra to serve
- 1 tsp hot horseradish sauce, plus extra to serveDijon mustardequalcondimentpungent
less heat, more vinegary
- 1 tsp flat-leaf parsley, finely chopped, plus a few leaveschivesequalherbonion
subtle onion note
- French bread, to serve
- black pepper, to taste(optional)
Instructions
- 1
Add melted butter, lemon zest, skinned mackerel and green onions to a food processor and blend until smooth.
- 2
Transfer the pâté to a ramekin and smooth the top.
- 3
Melt the remaining butter with horseradish sauce, then stir in the chopped parsley.
- 4
Carefully spoon the horseradish butter topping over the pâté to cover it.
- 5
Press parsley leaves on top and grind black pepper over the surface.
- 6
Chill until the butter topping is set.
- 7
Serve with French bread, additional butter and extra horseradish sauce on the side.
Tips
Skin the mackerel before processing for a smoother, more refined texture. Even small bits of skin create grittiness that detracts from the pâté's silky quality.
Chill the pâté thoroughly before serving so the horseradish butter topping sets into a protective seal that keeps the pâté fresh and adds visual definition.
Don't skip the extra horseradish on the side. Guests can adjust heat level to taste, and the additional sharpness brightens the rich, oily mackerel.
Good to Know
Covered in the refrigerator up to 3 days. The butter seal protects the pâté from oxidation and drying.
Prepare the pâté base up to 1 day ahead. Add the horseradish butter topping 2-3 hours before serving to allow it to set fully.
Chilled directly from the ramekin with warm French bread, additional butter and extra horseradish sauce for guests to customize.
Common Mistakes
Skip skinning the mackerel to avoid a gritty, unpleasant texture in the finished pâté.
Don't add the horseradish topping warm to a room-temperature pâté to avoid melting the base layer.
Avoid over-processing to prevent breaking the mackerel's natural oils and creating a separated, grainy consistency.
Substitutions
FAQ
Can I make this pâté ahead for a dinner party?
Yes. Prepare the pâté base up to one day ahead, covered. Add the horseradish butter topping 2-3 hours before serving so it sets properly. The finished pâté keeps covered in the refrigerator for 3 days.
What if I don't have hot horseradish sauce?
Dijon mustard works as a one-to-one substitute, though it's less sharp and more vinegary. Wasabi paste offers similar heat but use sparingly. Fresh grated horseradish mixed with a touch of vinegar is ideal if available.
Can I freeze smoked mackerel pâté?
Not recommended. The butter topping separates upon thawing, and the pâté's silky texture becomes grainy. Refrigerate instead for up to 3 days, or prepare fresh for best results.