Cream Cheese Frosting:
8-ounce package cream cheese, softened
1/2 cup butter, softened
3 cups powdered sugar
1 teaspoon vanilla
Preheat the oven to 350 degrees F. Grease a 13 by 9-inch baking pan. Beat together the eggs, sugar, oil and pumpkin on medium speed until light and fluffy. In a large bowl whisk together the flour, baking powder, cinnamon, salt and baking soda. Hand mix the dry ingredients into the pumpkin mixture until just combined. Spread the batter into the prepared 13 by 9-inch baking pan. Bake for 25-30 minutes or until toothpick inserted into the middle comes out clean. Let cool completely.
For the frosting, beat the cream cheese and butter until smooth. Add the powdered sugar and vanilla and beat well. Spread on cooled pumpkin bars. Cut into squares and serve.