Melt chocolate with the butter either over a double boiler or in the microwave. Add nuts and mix well. Spread evenly on bottom and side on pie pan. Chill until firm, about an hour. Remove shell from pie pan and place on serving plate. Keep chilled.
2Combine in a double boiler, marshmallos, milk,and salt. Heat until melted. Remove from heat. Add liqueurs. Stir until blended. Chill until thickened, about an hour. Gently fold in whipped cream. Pour into pie shell. Chill for at least an hour before serving. Can be frozen but allow to sit out to soften pie shell for cutting.