In a blender or juicer, combine the apple slices, pear slices, and grated ginger. Blend until smooth. If the mixture is too thick, add up to 1 cup of water for a thinner consistency.
Stir in the pumpkin spice, cinnamon, and a pinch of nutmeg into the juice. Blend for an additional 10-15 seconds to incorporate the spices
For a smoother texture, strain the juice through a fine mesh sieve or cheesecloth into a pitcher, pressing to extract all the liquid.
Pour the juice over ice cubes (if desired) and enjoy immediately! For a warm version, gently heat the juice on the stove for a cozy fall beverage.