Bars

2 cups all-purpose flour

2 cups granulated sugar

2 teaspoons pumpkin pie spice, plus additional for garnish

1½ teaspoons baking powder

1 teaspoon baking soda

½ teaspoon salt

1 (15-ounce) can 100% pure pumpkin

1 cup vegetable oil

4 large eggs

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Frosting

1 (8-ounce) package cream cheese, softened      

¾ cup salted butter, softened

2 teaspoons pure vanilla extract

1 teaspoon salt

6 cups powdered sugar

4 to 6 teaspoons milk