Cake: - Yellow cake box mix - Water - Butter - Eggs - Pumpkin puree - Brown sugar - Half and half - Pumpkin pie spice - Salt
In a large mixing bowl, whisk together butter yellow cake mix, water, butter, and 3 eggs. Whisk until well combined, and there are no lumps of cake mix.
In another large mixing bowl, whisk together pumpkin puree, brown sugar, half and half, 3 eggs, pumpkin pie spice, and salt.
Pour the pumpkin mixture over the cake mixture and gently smooth out evenly.
In a large mixing bowl, use a mixer to beat cream cheese until smooth. Add in powdered sugar and vanilla, and mix to combine until smooth.