Method:
Preheat oven to 400°F.
Combine apples, raisins, currants, cranberries, crystallized ginger, orange zest and juice, salt, sugar and 1/2 cup of the apple juice in a large saucepan. Bring to a boil, then reduce heat to a simmer and cook for 7 to 10 minutes, or until apples are tender. Meanwhile, stir together remaining 2 tablespoons apple juice and flour in a small bowl. When apples are tender, stir in flour mixture and cook, stirring constantly, until thickened, about 1 to 2 minutes. Remove from heat.
Stir in cinnamon, nutmeg, allspice and ground ginger, then pour the fruit mixture into the prepared pie crust. Top with second crust and flute the edges with your fingers to seal them. Make 3 slits in the top of the pie to allow steam to escape. (You may also make the second crust into a lattice top, if you prefer.) Bake for 40 to 45 minutes, or until crust is golden brown and filling is bubbly hot. Set aside to let cool slightly, then serve warm.