Preheat oven to 350 degrees F. Line a muffin tin with muffin papers.
In a bowl, mix together flour, baking powder, baking soda, salt, and cinnamon.
In a second bowl, mix together pumpkin, oil, egg, milk, sugar, and maple syrup.
Add dry ingredients to wet and fold together, mixing till just incorporated.
Transfer batter to muffin tin, filling each approximately 2/3 way.
Bake 20 to 25 minutes until a toothpick comes out clean.
Cool before serving.