1. FOR CRUST:.
2. Preheat oven to 350ºF.
3. Melt butter in a saucepan.
4. Stir in graham cracker crumbs, sugar and cocoa. Reserve 1/3 cup of this mixture and press the remainder in a 9-inch pie pan - bottom and sides.
5. Bake for 10 min and cool.
6. FOR FILLING:.
7. Put marshmallows, milk and salt in a large saucepan.
8. Heat, stirring often, until melted and smooth.
9. Chill until it mounds and stir in Kahlua.
10. Beat the whipping cream in a small bowl until stiff.
11. Fold in marshmallow mixture and turn into cooled pie shell.
12. Garnish with reserved crumb mixture and coffee beans.