Mary Berry’s Lemon Posset is a traditional British dessert made by simmering cream and sugar together, then adding fresh lemon juice to create a smooth, velvety custard. The acidity of the lemon juice naturally thickens the cream, resulting in a rich and creamy dessert with a tart citrus flavor. Served chilled, this dessert is often paired with shortbread or fresh berries.
Find it online: https://britishbakingrecipes.co.uk/mary-berry-lemon-posset/