Ingredients
3 large egg yolks
1 large egg
7 T cornstarch
1 cup plus 2T dark brown sugar
1-1/2 t kosher salt
4 cups heavy whipping cream, divided
1-1/2 cups whole milk
5 t unsalted butter, cubed
2 t scotch whiskey
about 1 cup good quality caramel sauce
gently warmed
Maldon sea salt
1/4 c plus 1 T creme fraiche or sour cream
Preparation
Whisk egg yolks, whole egg, and cornstarch in a medium bowl until smooth
Put sugar, salt, and 1/2 cup water in a 4 qt saucepan and bring to a boil over high heat, without stirring but swirling occasionally, and cook until mixture gets thicker, foamy, and lava like, about 5 minutes. Reduce heat to low and slowly whisk in 3 cups cream and the milk.
Remove from heat and slowly ladle half the cream mixture into egg mixture, whisking constantly, until mixture is as thick as cream gravy, about 6 minutes. Remove from heat and whisk in butter and whisky.
Pour custard through a fine mesh strainer into a bowl. Ladle into 8 lowball glasses, cover with plastic wrap. Chill for at least 4 hours and up to several days.
Whisk remaining 1 cup cream in a medium bowl until soft peaks form, then add creme fraiche and whisk until stiff peaks form (this will happen quickly, be careful not to overheat)
Spoon 2 T caramel sauce onto each custard, sprinkle with a few flakes of salt, and top with a dollop of whipped cream.