BOURBON SAUCE (1-1/4 cups)
½ cup (1 stick) unsalted butter
2 large eggs
1 cup packed dark brown sugar
1 teaspoon pure vanilla extract
¼ cup good-quality bourbon
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* on a candy thermometer, about 7 minutes.
from Martha Stewart Living