Turn your favorite Gooey Butter Cake into a Lemon dessert! Gooey Lemon Cake Bars make everybody happy and no one has to know you started with a box of cake mix!
In a large mixing bowl, combine cake mix, butter and egg. Press into the bottom of a 13x9 baking dish.
Combine cream cheese, sugar, vanilla eggs in a mixer. Beat until fluffy. Pour over crust.
Bake in a 325 degree oven for 40-45 minutes (I underbake mine a little to get that definitive separation in layers). Remove from oven and cool completely.
Refrigerate for 4 hours (or overnight) for best flavor. ENJOY.
Notes
When in doubt, underbake. My bars are ready to come out of the oven at about 40 minutes.
Chill well. I know the cake smells so good when it comes out of the oven, you'll be tempted to dig in right away. But chilling this for at least 4 hours before serving helps it firm up to the right texture. I also LOVE the taste of these bars best when they're cold.
Can this be made ahead of time? Absolutely. Bake them the night before and keep them covered with foil or plastic wrap in the fridge over night.