Combine half the candy bar pieces and 1 pint softened ice cream in a small
bowl. Spoon into crust, smoothing top. Freeze until hardened, about 3
hours. Mix together remaining ice cream, pumpkin, sugar, cinnamon and
nutmeg in a small bowl. Spread over top of frozen ice cream layer. Return
to freezer for 1 hour. Press remaining candy pieces around outside rim of
pie. Return to freezer for 2 hours more or overnight. To serve, let stand
at room temperature to soften.
