Preheat the oven to 350 degrees F (175 degrees C). Grease a sheet pan, then line it with parchment paper and grease the paper.
Make the cake: Beat eggs in a large bowl with an electric hand mixer until foamy. Add sugar, vegetable oil, and pumpkin purée; beat on medium speed until incorporated, about 2 minutes.
Mix flour, baking powder, cinnamon, baking soda, and salt together in a separate bowl. Beat flour mixture into egg mixture on low speed until just combined, about 1 minute. Pour batter into the prepared pan and spread out the edges.
Bake in the preheated oven until a toothpick inserted in the center comes out clean, about 25 minutes. Cool completely, about 30 minutes.
While the cake layer is cooling, make the frosting: Beat cream cheese, butter, and vanilla in a bowl with an electric mixer until creamy. Gradually mix in confectioners' sugar until smooth.
Spread frosting evenly over cooled cake layer, then sprinkle with cinnamon.
Cut into 24 bars.
Nutritional Facts
Per 24 servings
Calories: 373
Carbohydrate: 48g
Fat: 20g
Fiber: 1g
Protein: 2g
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