Six minutes, no heat, and it tastes like something that took considerably longer.
- Drain the mackerel, keeping the oil. Into a bowl and mashed with a fork, skin and all, it disappears.
- Tahini, mustard, lemon juice and a great deal of black pepper: more than feels right, this is a peppered pâté.
- Mash until coarse and spreadable. Loosen with the reserved oil, then with a little water if it is still stiff.
Tahini seizes when the lemon hits it and looks ruined for about twenty seconds. Keep working, the liquid brings it back.
Taste for lemon twice. Oily fish takes far more acid than you expect and the first addition is almost never enough.
Serves 3 on oatcakes.