01 -
Set oven to 175°C (350°F). Grease a 9×13-inch (23×33 cm) baking pan.
02 -
In a mixing bowl, combine cake mix, 1 egg, and melted butter. Press mixture evenly into the prepared pan.
03 -
Beat cream cheese and pumpkin puree until smooth. Add eggs, vanilla extract, and melted butter; mix well. Gradually incorporate powdered sugar, pumpkin pie spice, and cinnamon until creamy.
04 -
Pour the pumpkin filling over the cake base, spreading evenly to cover.
05 -
Bake for 40 to 50 minutes until the center remains slightly gooey. Avoid overbaking.
06 -
Allow to cool slightly. Optionally dust with powdered sugar, cut into squares, and serve warm or at room temperature.