Leave the ham or bacon cubes in a hot pan. Add the chopped shallots with garlic and apple pieces and sweat in them until translucent. Salt and pepper as needed and place in a tall mixing bowl.
In the same pan, fry the lamb liver, cut into large pieces. Then add salt (after roasting!), Then also add to the mixing bowl. Now add the chopped herbs and puree everything together with a hand blender.
Meanwhile, let the butter melt (but do not brown) in the still hot pan. Then mix in the butter. Pour the mixture into molds and leave to set overnight.