Start by heating the cream and sugar in a saucepan over medium heat, stirring until the sugar has completely dissolved.

Once the sugar has melted, remove the saucepan from the heat and stir in the lemon zest and juice. The citrus flavor will infuse into the cream mixture.

Next, divide the mixture into individual pots or bowls, ensuring an even distribution.

Allow the posset to cool to room temperature, then transfer it to the refrigerator to chill for a minimum of 3 hours. This chilling period will help the posset set and achieve its creamy texture.