05Melt the butter in a saucepan over medium heat then stir in the brown sugar until incorporated and sugar is dissolved. Slowly stir in the cream. Bring the sauce up to a boil and let it boil for 3 minutes, stirring constantly. Remove from heat and stir in the vanilla. Let the sauce cool. Then pour it into a jar and store in the refrigerator until ready to serve.
06Serve the crisp warm or at room temperature with the warmed caramel sauce and vanilla ice cream.