Preheat oven to 350°
Line a muffin pan with cupcake liners or spray the muffin pan with a baking spray so the muffins easily release from the pan.
In a medium bowl whisk flour, baking powder, baking soda, and salt.
Add in the pumpkin, sugar, oil, molasses, eggs, pumpkin pie spice, and ground ginger and mix to combine completely.
Place 3 tablespoons of batter into each muffin pan compartment.
Top each with sugar mixture.
Bake muffins for 25 minutes.
Test with a toothpick and bake until it comes out clean.
Allow the muffins to cool for 5 minutes in the pan, then remove from the pan.
Place them on a cooling rack to completely cool.