1. Preheat oven to 375°F.
2. Stem, wash and drain huckleberries.
3. Place berries in a heavy pot, cover with cold water and bring to a slow boil.
4. Cook until soft.
5. Drain; mash berries with a potato masher to break their skins.
6. Add sugar, nutmeg, salt, butter, lemon juice and cornstarch.
7. Cook for about five minutes, stirring constantly, until the mixture thickens.
8. Place pastry for bottom crust in pie pan.
9. Pour in the berry mixture and dot with butter.
10. Cover with top crust, crimping crust edges to seal and piercing top crust all over with a fork to allow steam to escape.
11. Bake for 45 minutes or until the crust is a light brown.
12. Cool.