• Melt the butter in a pan with the mace, cayenne, thyme leaves (if using) and lemon zest. Set aside for the flavours to infuse. 
  • Pull the mackerel off in chunks, put in a bowl and shred the fish. 
  • Add the cream cheese in dollops and mash with a fork. 
  • Squeeze in the lemon juice (mind the pips) and add a pinch of salt and pepper. 
  • Pour the butter into the mackerel bowl followed by the parsley (optional) and beat with a  wooden spoon. 
  • Transfer into a serving dish or large jar and chill for 20 mins to firm. 
  • Any leftovers will keep in the fridge for 3 days.