1/4 Sheet White Cake with Buttercream Icing, White

sugar, enriched bleached wheat flour (flour, niacin, reduced iron, thiamine mononitrate, riboflavin, folic acid, polysorbate 60, soybean oil, water, high fructose corn syrup, contains less than 2% of the following: corn starch, leavening (sodium acid pyrophosphate, baking soda, monocalcium phosphate, wheat starch, modified tapioca and cornstarch, salt, natural and artificial flavor, whey, dextrose, soy lecithin, sodium caseinate dextrin, guar gum, polysorbate 60, confectioner's glaze, xanthan gum, sodium stearoyl lactylate, red 40 lake, yellow 5 lake, disodium phosphate, yellow 6 lake, carnauba wax, ascorbic acid, blue 1 lake, citric acid, red 3, blue 1, red 40, rice flour, colored with (spirulina extract powder, turmeric oleoresin, vegetable juice, beta-carotene, titanium dioxide, cocoa, blue 2 lake, yellow 5, cellulose gum, gum arabic, carrageenan, yellow 6