Gently melt the butter in a small saucepan over a very low heat
Simmer gently until a foam rises to the top then remove the foam with a spoon
Carefully pour the clarified butter from the top into a jug and discard the milky residue underneath
Melt half of the clarified butter and stir in the shrimps, nutmeg, mace and seasoning to taste
Spoon the mixture into two ramekin dishes and chill until the mixture has set
Melt the remaining clarified butter and spoon over the top of the shrimps
Chill once again until the mixture has set
Serve with toast or crusty brown bread, using the butter layer on top of the ramekins to spread on the toast first.