Is ADAM MATTHEWS, YELLOW CARAMEL CAKE vegan?

baker's request yellow cake mix (sugar, enriched wheat flour bleached [flour, niacin, reduced iron, ferrous sulfate, thiamin mononitrate, riboflavin, folic acid], dry egg white, soybean oil, leavening [baking soda, sodium acid pyrophosphate, sodium aluminum phosphate, monocalcium phosphate], food starch-modified, propylene glycol, mono & diesters of fatty acids, dry egg yolk, dextrose, mono & diglycerides, salt, sorbitan monostearate, nonfat dry milk, soy lecithin, polysorbate 60 cellulose gum, xanthan gum, water, corn syrup, natural and artificial flavor, polysorbate 80, glycerin, corn oil, beta carotene as color, alpha tocopherols as preservative, caramel color), water, butter (cream, salt, contains: milk), eggs, sugar, vanilla (water, propylene glycol, alcohol, artificial flavors and caramel color [contains sulfites]) powdered sugar (sugar, corn starch), dark brown sugar (sugar, molasses), tastex margarine (partially hydrogenated soybean and cottonseed oil, skim milk, cultured skim milk, salt, vegetable mono-and diglycerides and soy lecithin [emulsifiers], vitamin a palmitate, colored with beta carotene [source of vitamin a], artificial flavor) contains: milk, soy, whole milk, food starch modified, modified corn starch, vanilla (water, propylene glycol, alcohol, artificial flavors and caramel color (contain sulfites), salt

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