Meanwhile, in small bowl, sprinkle gelatin over 1/4 cup cold water; set aside to soften. In 2-quart saucepan, mix dates, 1/4 cup sugar, the salt, milk and egg yolks. Cook over medium heat 10 to 12 minutes, stirring constantly, until mixture is slightly thickened. Remove from heat. Stir in softened gelatin and vanilla until gelatin is dissolved. Refrigerate, stirring occasionally, until date mixture is thickened and partially set.