In a large saucepan, combine the cream, egg yolks and sugar. Cook and stir over medium heat until mixture reaches 160° or is thick enough to coat the back of a metal spoon. Stir in vanilla. , Transfer to eight 6-oz. ramekins or custard cups. Place cups in a baking pan; add 1 in. of boiling water to pan. Bake, uncovered, at 325° for 25-30 minutes or until centers are just set (mixture will jiggle). Remove ramekins from water bath; cool for 10 minutes. Cover and refrigerate for at least 4 hours., One hour before serving, place custards on a baking sheet. Sprinkle each with 1-2 teaspoons brown sugar. Broil 8 in. from the heat for 4-7 minutes or until sugar is caramelized. Refrigerate leftovers.