large bowl and chill until thickened, about 15 minutes. Meanwhile, in small saucepan, combine caramels, 1/4 cup of the cream, and butter. Simmer over low heat, stirring occasionally, until caramels are completely melted and mixture is smooth. Pour onto Chocolate-Pecan Crust (recipe follows) to cover bottom; let stand at room temperature to cool, about 10 minutes. With wire whisk or spoon, beat gelatin mixture until smooth. Pour into prepared crust; chill until firm, about 3 hours. Garnish with remaining 1/4 cup of cream, whipped, and if desired, pecans.