Preheat oven to 300F and grease 9×13″ pan.

Mix together 2 eggs and butter. Stir in 1/4 cup lemon juice and 2 teaspoons zest, then add in pound cake mix. Batter will be really stiff. Press into prepared pan.

Lightly beat remaining 2 eggs and combine with cream cheese. Stir in remaining 1 tablespoon lemon juice and 1 teaspoon zest. Add in all powdered sugar (except about 1/8 cup for garnish). Mix until creamy and pour over cake layer.

Bake for about an hour. Dredge with powdered sugar as soon as you remove it from the oven. Serve warm. Or cold. Or hot.