Preheat your oven to 350 degrees and line a 12-cup muffin pan with paper liners.
In a large mixing bowl, whisk together flour, baking powder, baking soda, salt, cinnamon, nutmeg, and ginger for about 20 seconds. Create a well in the center of this mixture and set it aside.
In a separate mixing bowl, whisk together sugar, oil, pumpkin, eggs, and apple juice until everything is well blended.
Pour the pumpkin mixture into the well you made in the flour mixture and fold them together using a rubber spatula until just combined.
Divide the batter among the prepared muffin cups, filling each one nearly full.
Bake in the preheated oven for approximately 20 to 25 minutes, or until a toothpick inserted into the center comes out clean.
Allow the muffins to cool in the muffin pan for a few minutes, then transfer them to a wire rack to cool completely. Store them in an airtight container.