Combine all of the ingredients for the cake layer in a mixing bowl. Press down in a 9x13-inch baking pan sprayed with nonstick cooking spray; set aside.
In a large bowl combine powdered sugar and butter.
Add enough lemon juice to form the consistency of a thick frosting.
Beat in cream cheese and yellow food coloring until smooth.
Set aside 1 cup of frosting to spread on top after baking (be sure to not skip this step!).
Add eggs to remaining frosting mixture and beat until fluffy.
Spread on top of cake mix in the pan and bake for 25-30 minutes, or until barely golden brown.
Let cool completely and then spread reserved frosting mixture on top and serve.
Notes
You don't want it to get too brown or they are dry. Cook on the low end of the cooking time and keep checking til light golden.