Bourbon Sauce

• Bourbon Sauce

• 1/2 cup (1 stick) unsalted butter
• 2 large egg yolks
• 1 cup packed dark-brown sugar
• 1 teaspoon pure vanilla extract
• 1/4 cup good-quality bourbon

Directions

1. Put butter, egg yolks, brown sugar, vanilla, and bourbon in a heatproof bowl set over a pan of simmering water. Cook, whisking constantly, until mixture registers 160 degrees on a candy thermometer, about 7 minutes.
   
   
   http://www.marthastewart.com/340281/bourbon-sauce