Heat oven to preheating: The oven should be preheated to 350°F, or 175°C. Set aside a 9×13 inch baking pan and grease it.
Get the crust ready: Melt the butter and stir in the dry cake mix with the egg in a medium bowl. Combine all ingredients and mix until smooth. Evenly press the dough into the bottom of the baking pan that has been prepared.
The gooey layer is made by beating the cream cheese until it is smooth in a separate big bowl. After a few minutes of beating, add the beaten eggs. Mix in the powdered sugar gradually while beating.
Put it all together by spreading the melted topping over the crust you just made.
Cook: Preheat oven to 375 degrees and bake for 25 to 30 minutes, or until done. Careful not to bake for too long.
Cool: After the bars have cooled completely in the pan, they may be cut into squares.
