Preparation

In 17th-century England, posset was served at weddings, christenings, and as a remedy for colds. Unlike modern drinks where curdling is a disaster, posset deliberately creates a creamy, custard-like texture through the controlled interaction of cream, eggs, and acidic wine. Samuel Pepys mentions drinking posset in his famous diary, and recipes appear in household books from farmhouses to palaces.

"Sack" referred to fortified wines from Spain and the Canary Islands—the precursors to modern sherry. The name likely derives from the Spanish word "sacar" (to export). This posset recipe appears in multiple 17th-century sources including Hannah Woolley's The Queen-like Closet (1670).

Preparation

1. In a medium saucepan, combine the cream, sugar, nutmeg, mace, ginger, and lemon zest. Heat gently over medium-low heat, stirring frequently, until the sugar dissolves and the mixture is steaming but not boiling.
2. In a separate bowl, whisk the egg yolks until smooth.
3. Slowly pour about 1/2 cup of the hot cream mixture into the yolks, whisking constantly to temper them.
4. Pour the tempered yolk mixture back into the saucepan, whisking continuously.
5. Continue heating gently, stirring constantly, until the mixture thickens slightly and coats the back of a spoon (about 170°F). Do not boil.
6. Remove from heat. Gradually pour in the sherry while whisking.
7. Pour the mixture into individual serving glasses or a large bowl. The posset will curdle slightly as it stands—this is correct.
8. Let cool to room temperature, then refrigerate for at least 4 hours or overnight. The mixture will separate into a creamy top layer and a clear liquid bottom layer, which is traditional.
9. Serve cold, garnished with candied lemon peel. Some prefer to eat the top layer and drink the bottom; others stir it together.

The finished posset has a silky, rich texture reminiscent of panna cotta with a boozy, spiced flavor profile. The separation that occurs is not a flaw but rather the hallmark of authentic posset—the creamy top layer contrasts beautifully with the clear, wine-flavored liquid below. This is Renaissance indulgence captured in a glass.