• Make-Ahead

Ingredients

1. 6 tablespoons unsalted butter
2. 1 cup plus 2 tablespoons packed light brown sugar
3. 2 cups heavy cream, 1 1/4 cups warmed
4. 3 tablespoons cornstarch
5. 1/4 teaspoon kosher salt
6. 2 cups whole milk
7. 3 large egg yolks
8. 2 teaspoons pure vanilla extract
9. 1/2 tablespoon bourbon
10. 1/2 tablespoon apple-cider vinegar
11. 1/2 cup crunchy toffee pieces, such as broken Heath or Skor bars

Directions

1. In a large, heavy saucepan, melt the butter. Add the brown sugar and cook over low heat, stirring, until the sugar is dissolved and bubbling, about 3 minutes. Stir in the warmed cream. 
2. In a small bowl, combine the cornstarch with the salt. Add 1/2 cup of the milk and whisk until smooth. Add the cornstarch mixture to the saucepan along with the remaining 1 1/2 cups of milk and cook over moderate heat, stirring constantly, until thickened, about 4 minutes. Off the heat, whisk in the egg yolks, 1 1/2 teaspoons of the vanilla and the bourbon. Return the pudding to the heat and bring to a boil, stirring constantly. Off the heat, whisk in the vinegar. Strain the pudding through a fine sieve set over a bowl. Pour the pudding into six 6- to 8-ounce parfait glasses or dessert bowls. Press a piece of plastic wrap directly on the surface of each pudding and refrigerate until chilled, at least 3 hours, or overnight. 
3. In a chilled bowl, whip the remaining 3/4 cup of heavy cream with the remaining 1/2 teaspoon of vanilla until soft peaks form. Garnish the puddings with the whipped cream and toffee pieces and serve.

Make Ahead

The recipe can be prepared through Step 2 and refrigerated for up to 2 days.