Mix together the cake mix, 8 Tbs. butter and egg. (I actually used my mixer to do this)
Lightly spray a 9x13 pan with cooking spray and pat the cake mixture into the bottom of the pan.
In a bowl, mix together the filling by first mixing the pumpkin and cream cheese together till smooth.
Add the eggs, vanilla, butter and beat together.
Mix in the cinnamon, nutmeg and powdered sugar.
Pour over the top of the cake mixture.
Bake for 40-50 minutes. (It will depend on your oven, I cooked mine for 50 minutes) Don't over cook, you want it to not be completely set in the middle.
Let it cool at least 15 minutes before serving.
Add a big scoop of whip cream on top and ENJOY!!!
Recipe by Sugar n' Spice Gals at https://sugar-n-spicegals.com/gooey-pumpkin-cake/