The Cakery Marble Celebration Cake Square With Buttercream Icing

sugar, enriched bleached wheat flour (wheat flour, niacin, reduced iron, thiamine mononitrate, riboflavin, folic acid), egg whites, soybean oil, eggs, water, contains less than 2% of the following: cocoa alkali processed, skim milk, leavening (sodium acid pyrophosphate, baking soda, monocalcium phosphate), salt, propylene glycol mono and diesters of fats and fatty acids, whey, wheat starch, modified cornstarch, mono and diglycerides, dextrose, natural and artificial flavor (contains milk ingredients), sodium caseinate, xanthan gum, polysorbate 60, sodium stearoyl lactylate, soy lecithin, artificial color (yellow 5 lake), sugar, vegetable shortening (palm oil, canola oil, mono-and diglycerides, polysorbate 60). contains 2% or less of each of the following: natural and artificial flavors, salt, corn starch, artificial color, guar gum, locust bean gum., BUTTER(Pasteurized cream (milk)) , Sugar, Cornstarch, Rice Flour, Palm Oil, Gum Acacia, Xanthan Gum, China, Natural and Artificial Flavor, Titanium Dioxide (color), Blue 1 Lake, Red 40, Yellow 5, Blue 1, Red 3, Yellow 6, Potassium Sorbate (preservative), Mono-and diglycerides, Polysorbate 60