1/4 Sheet White Cake with Buttrcreme Icing, Buttrcreme Icing

sugar, enriched bleached wheat flour flour, niacin, reduced iron, thiamine mononitrate, riboflavin, folic acid, vegetable shortening palm and soybean oils, mono and diglycerides, polysorbate 60, egg whites, soybean oil, eggs, high fructose corn syrup, the following water, rice flour, leavening sodium acid pyrophosphate, baking soda, monocalcium phosphate, wheat starch, modified tapioca and corn starch, palm kernel and or palm oil, propylene glycol mono and diesters of fats and fatty acids, salt, natural and artificial flavor, whey, dextrose, mono and diglycerides, soy lecithin, sodium caseinate, corn starch, gum arabic, cellulose gum, guar gum, polysorbate 60, confectioner s glaze, carrageenan, red 40 lake, xanthan gum, sodium stearoyl lactylate, yellow 6, red 40, disodium phosphate, yellow 5, blue 1, ascorbic acid, blue 2 lake, citric acid, blue 1 lake, yellow 5 lake, colored with spirulina extract powder, turmeric oleoresin, vegetable juice, beta carotene, titanium dioxide, red 3, yellow 6 lake, cocoa, dextrin, carnauba wax