This is the ultimate easy lemon "delicious" posset. An old fashioned English dessert recipe incredibly easy but you must follow the boiling instructions directly.
Place cream and caster sugar in a small saucepan and stir as you boil. Boil for EXACTLY 3 minutes. ( this timing is very important for the chemistry to work.
Remove from heat and whisk in the grated rind and lemon juice. Taste and add a little more lemon if not sharp enough. Cool then pour into small glasses and chill completely for 4 - 6 hours or better still over night.
Serve with a small dollop of lightly whipped cream and grated lemon rind sprinkled over or a teaspoon of lemon curd.