Place butter and sugar in medium saucepan on medium heat. Cook and stir until mixture turns a deep amber color.

Carefully stir in cream and vanilla. (Mixture will be bubbly.) Whisking constantly, cook until sauce thickens and coats back of spoon.

Note: This toffee sauce is a snap to prepare. It elevates ice cream and sweet treats like brownies and cakes with rich, buttery flavor.