Whoopie Pie Chocolate Cake with White Filling

chocolate cake base sugar, enriched bleached flour wheat flour, niacin, iron, thiamine mononitrate, riboflavin, folic acid, cocoa processed with alkali, modified corn starch, soybean oil, mono and diglycerides, leavening baking soda, sodium aluminum phosphate, modified whey, vital wheat gluten, salt, calcium acetate, sorbitan monostearate, sodium stearoyl lactylate, nonfat milk, xanthan gum, guar gum, polysorbate 60, natural and artificial flavor, egg, soy flour, sugar, eggs, canola oil, water, marshmallow creme corn syrup, sugar, water, egg whites, cream of tartar, xanthan gum, palm oil palm oil, mono and diglycerides, polysorbate 60, food starch modified, baking powder sodium acid pyrophosphate, sodium bicarbonate, corn starch, monocalcium phosphate, corn starch, bleached wheat flour, salt, natural and artificial flavors