- 2 smoked mackerel fillets, skin and pin bones removed
- 2 tbsp Greek-style yoghurt
- 2 tbsp creamed horseradish
- ½ lemon, juice only
- salt and freshly ground black pepper
- butter, for spreading
- 4-6 slices white bread
- ½ cucumber, peeled, seeds removed, finely sliced
- Flake the mackerel fillets into the bowl of a food processor. Add the yoghurt, horseradish and lemon juice and season with salt and freshly ground black pepper. Pulse gently to a rough paste.
- Butter the bread, remove the crusts and cut into neat squares.
- Arrange a single layer of sliced cucumber onto half of the buttered bread. Spread the mackerel pâté on top and sandwich with the remaining bread.
- To serve, cut the sandwiches into triangles.