Mint Chocolate-flavored Frozen Greek Yogurt Bars with Crushed Chocolate Cookies, Mint Cookie Chums

skim milk, sugar, greek yogurt (nonfat milk, milk protein concentrate, maltodextrin, cream, less than 2% of wheat flour, locust bean gum, guar gum, palm oil, palm kernel oil, natural flavor, fruit and vegetable juice for color, spirulina extrac