- 1/2 cup stout such as Mackeson or Guinness (pour beer slowly into measuring cup; do not measure foam)
- 5 large egg yolks
- 3/4 cup packed light brown sugar
- 1/4 cup heavy cream
- 1 teaspoon vanilla
Bring beer just to a boil in a small heavy saucepan, then remove from heat.
Whisk together yolks, brown sugar, and a pinch of salt in a medium bowl until combined well. Whisk in cream and vanilla, then add hot beer in a slow stream, whisking constantly. Transfer to saucepan and cook over moderately low heat, stirring constantly with a wooden spoon, until custard is thickened and registers 175°F on thermometer (do not let boil), about 5 minutes.
Pour custard sauce through a fine-mesh sieve into a metal bowl, then set bowl in a larger bowl of ice and cold water and stir until cool. Remove from ice bath and refrigerate, covered, until cold, at least 1 hour.
Makes 1.5 cups
Thanks to Gourmet