1⁄4 cup oloroso sherry
2 tbsp. cognac
2 tbsp. fresh lemon juice
Zest of 1 lemon, reserve a small
amount for garnish
1 3⁄4 cups plus 2 tbsp. cold heavy
cream (preferably unhomogenized)
Pinch of freshly grated nutmeg
4 sprigs of rosemary
1. Put sugar, sherry, cognac, lemon juice, and zest into a large bowl. Stir well, then cover and let sit out at room temperature overnight to allow the flavors to meld.
2. Add heavy cream and a pinch of nutmeg (just "a suspicion", says Day-Lewis) to the sherry mixture and whip with a whisk until soft peaks form. Spoon into 4 glasses and garnish each with a bit of lemon zest and a sprig of rosemary.