Preheat oven to 350f and line a cupcake pan with liners. This helps even baking and easy cleanup
Bring eggs to room temperature by placing in warm water for 10 minutes for smooth batter and tender cupcakes
In a medium bowl gently whisk together flour, baking powder, baking soda, and salt until evenly combined for a soft, fluffy texture
In a large bowl mix brown sugar and pumpkin puree until smooth for moist pumpkin flavor
Add olive oil, pumpkin pie spice, cinnamon, and vanilla extract and mix gently for warm, cozy autumn taste
Add eggs one at a time and mix until combined to keep cupcakes light
Gradually fold dry ingredients into wet ingredients just until combined to avoid dense cupcakes
Fill cupcake liners almost full leaving ½ inch space for nicely domed tops
Bake for 20–23 minutes or until a toothpick comes out with a few crumbs. Check early as ovens vary
Let cupcakes cool completely on a wire rack before frosting for creamy frosting