Melt 1/2 pound marshmallows (about 32) and 1 can of pumpkin. Add 1/2 teaspoon cinnamon, 1/4 teaspoon salt, 1/4 teaspoon ginger and let cool until cold. Fold in 1 cup cream whipped and turn into baked pie crust. Chill and serve with whipped cream (can use condensed milk instead of cream.)