Preheat your oven to 350°F (175°C) and grease the baking pan.
In a mixing bowl, combine the yellow cake mix, brown sugar, granulated sugar, instant vanilla pudding mix, ground cinnamon, eggs, water, and vegetable oil. Mix until well combined.
Pour the batter into the prepared baking pan and smooth the top.
Bake for 30 minutes or until a toothpick inserted in the center comes out clean.
Let the cake cool before slicing and serving.
Notes
You can top the cake with a dusting of powdered sugar or a cinnamon-sugar mixture for extra flavor.