2/3 c. brown sugar, firmly packed
2 tbsp. cornstarch
1 can evaporated milk
1/3 c. water
1 egg, slightly beaten
3 tbsp. soft butter
1/2 tsp. vanilla

Place brown sugar and cornstarch in medium saucepan; mix well. Stir in evaporated milk and water. Cook over medium heat, stirring constantly until mixture just comes to a boil. Remove from heat. Stir small amount of hot mixture into beaten egg. Return all of egg mixture to hot mixture. Cook and stir 1 minute more. Remove from heat. Stir in butter and vanilla until butter melts. Pour into dessert dishes and chill 1 hour or until firm.