
Preheat Oven: Begin by preheating your oven to 350°F (175°C). Preparing the oven beforehand ensures even cooking.
Mix Butter and Sugar: In a large mixing bowl, cream together 1 cup of softened butter and 1 ⅔ cups of sugar until light and fluffy. This process usually takes about 3-5 minutes.
Add Eggs: Beat in 4 eggs one at a time, mixing well after each addition for a smooth batter.
Add Pumpkin: Stir in the 15 oz. can of pumpkin until fully combined. The mixture should be thick and smooth.
Combine Dry Ingredients: In another bowl, whisk together 2 cups of all-purpose flour, 2 teaspoons of cinnamon, 1 teaspoon of baking powder, 1 teaspoon of baking soda, and ½ teaspoon of salt.
Blend Mixtures: Gradually add the dry ingredients to the wet mixture, stirring just until combined. Do not overmix; a few lumps are okay.
Bake: Pour the batter into a greased 18x13 inch pan, spreading it evenly. Bake for 35 minutes or until a toothpick inserted into the center comes out clean.
Cool: Once baked, allow the bars to cool completely in the pan on a wire rack before frosting.
Mix Frosting Ingredients: In a medium bowl, combine 8 oz. softened cream cheese, ½ cup softened butter, and 1 teaspoon of vanilla extract. Beat until smooth.
Add Powdered Sugar: Gradually incorporate 3 cups of powdered sugar, continuing to beat until the frosting is fluffy and light.
Frost Bars: Once the pumpkin bars are completely cool, spread the cream cheese frosting evenly on top. If desired, sprinkle additional cinnamon for garnish.
Now, cut into squares and serve. Enjoy the deliciousness of homemade Pumpkin Bars!