Preheat oven to 350 degrees F.
In a small bowl, combine flour, baking powder, baking soda, salt, + cinnamon. Set aside.
In a medium bowl, beat vegetable oil + sugar together until combined. Slowly add in eggs one at a time until fully incorporated. Add maple syrup, sour cream, and vanilla extract and beat on medium.
Add the flour mixture into the wet ingredients, and mix until all combined (I like to add the four in 1/3 and hand mix it into the batter. As soon as you see all the white specs of flour gone–STOP MIXING!) Pour
Line a cupcake pan with cupcake liners. Pour batter 1/2 way into the cupcake liners.
Bake for 25-28 minutes or until a toothpick comes out clean.