Let’s get cooking with these easy steps:

1. Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish or line it with parchment paper for easy removal.
2. In a medium bowl, whisk together the flour, baking powder, baking soda, cinnamon, nutmeg, ginger, and salt. Set aside.
3. In a large bowl, combine the granulated sugar, brown sugar, pumpkin puree, vegetable oil, eggs, and vanilla extract. Mix until well combined.
4. Gradually add the dry ingredients to the wet ingredients, stirring just until combined. Be careful not to overmix.
5. Pour the batter into the prepared baking dish, spreading it evenly.
6. Bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean. Let cool completely in the pan on a wire rack.
7. While the bars are cooling, beat the softened cream cheese and butter together in a medium bowl until smooth. Gradually add the powdered sugar and vanilla extract, beating until fluffy.
8. Spread the cream cheese frosting evenly over the cooled pumpkin bars.
9. Cut into squares and enjoy the delightful taste of autumn!

Pro tip: If you’re baking with kids, let them mix the wet ingredients. It’s a fun way to get them involved, and they’ll love seeing the batter transform into delicious bars.