In a medium bowl, mix the cake mix, melted butter, and one egg.
Press it evenly into the bottom of your prepared pan.
In a large bowl, beat the cream cheese until smooth. Add the eggs, vanilla, and melted butter and mix until fully combined.
Slowly add in the powdered sugar and mix until the batter is thick, smooth, and glossy.
Pour this mixture over the base layer and spread it out evenly with a spatula.
Bake for 40 to 45 minutes
You want the edges to be set and slightly golden, but the center should still jiggle a bit
Let the cake cool completely in the pan.
Once cool, dust the top with a generous layer of powdered sugar.
