Fresh coborn's, neopolitan square cake

Water, white cake mix (sugar, enriched flour bleached [wheatflour, niacin, iron, thiamine mononitrate, riboflavin, folic acid], partially hydrogenated soybean oils, egg white, nonfat milk, egg yolk, leavening [bakingsoda, sodium aluminum phosphate, monocalcium phosphate], propylene glycol monoand diesters of fatty acids, dextrose, modified tapioca starch, mono and diglycerides, salt, sorbitan monostearate, sodium pyrophosphate, xanthan gum, sodium stearoyl lactylate, polysorbate 60, calcium acetate, cellulose gum, guargum, artificial flavor, soy flour), powdered sugar with corn starch (anticaking agent), icing base (vegetable oil [partially hydrogenated soy and cottonseed], sugar, corn syrup solids, mono and diglycerides, salt, artificial flavor, polysorbate 60), chocolate cake mix (sugar, bleached enriched wheatflour [wheat flour, niacin, reduced iron, thiamine mononitrate, riboflavin, folic acid], emulsified vegetable shortening [partially hydrogenated soybean and cottonseed oils, propylene glycol mono&diesters, mono&diglycerides, soylecithin, polysorbate 60], cocoa [processed with alkali], leavening [sodiumbicarbonate, sodium acid pyrophosphate, monocalcium phosphate, sodium aluminum phosphate, aluminum sulfate], nonfat dry milk, dried egg whites, modif