Make the Pumpkin Bars
Preheat oven to 350°F (175°C). Grease and flour a 9x13-inch baking pan or line with parchment paper.
Mix dry ingredients – In a medium bowl, whisk together flour, baking powder, baking soda, salt, cinnamon, nutmeg, and cloves.
Beat wet ingredients – In a large mixing bowl, beat the eggs, sugar, oil, pumpkin puree, and vanilla until smooth and well combined.
Combine – Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Do not overmix.
Bake – Pour the batter into the prepared pan and spread evenly. Bake for 25–30 minutes or until a toothpick inserted in the center comes out clean.
Cool completely before frosting.
Make the Cream Cheese Frosting
In a large bowl, beat the cream cheese and butter until creamy and smooth.
Add powdered sugar gradually, beating until fully incorporated and fluffy.
Mix in vanilla extract and a pinch of salt.
Assemble
Spread the cream cheese frosting evenly over cooled pumpkin bars.
Slice into squares or rectangles and serve.