Preheat the oven to 350 degrees F.
Using an electric mixer at medium speed, combine
the eggs, sugar, oil and pumpkin until light and
fluffy. Stir together the flour, baking powder,
cinnamon, salt and baking soda. Add the dry
ingredients to the pumpkin mixture and mix at
low speed until thoroughly combined and the
batter is smooth. Spread the batter into a
greased 13 by 10-inch baking pan. Bake for 30
minutes. Let cool completely before frosting.
Cut into bars.