Blue Velvet Whoopie Pie

shell [enriched bleached wheat flour (wheat flour, niacin, iron, thiamine mononitrate, riboflavin, folic acid, sugar, water, soybean oil, modified food starch, blueberry icing fruit (corn syrup, blueberry puree, dextrose, citric acid, sodium carboxymethylcellulose, pectin, artificial flavor, sodium benzoate, red 40, blue 1, corn syrup, cocoa processed with alkali, whey, vital wheat gluten, diacetyl tartaric acid, oleyl lactylate acid, soy lecithin, salt, sodium aluminum phosphate, sodium bicarbonate, artificial flavor, dextrose, titanium dioxide, datem, sodium benzoate and potassium sorbate and sodium propionate, natural and artificial vanilla flavor, sorbitan monostearate, natural and artificial vanilla flavor, guar gum, citric acid, polysorbate 60, beta carotene, gum arabic, xanthan gum, red 40, blue 1, phosphoric acid, filling [cream cheese (pasteurized cultured milk and cream, stabilizers (xanthan, dextrose, vegetable shortening (palm oil, polysorbate 60, sugar, corn starch, corn syrup, water, food starch-modified, natural cream cheese flavor (cream, butteroil, propylene glycol, natural flavor, salt, lactic acid, guar gum, sorbitan monostearate, polysorbate 60, sodium propionate and potassium sorbate, natural and artificial vanilla flavor, phosphoric acid