Sour watermelon. Sour green apple. Assorted candy powder blasted sour bars. Naturally and artificially flavored frozen dairy confection. The name says it all! Blasted with Pucker Powder for the ultimate sweet & sour. North Star Pucker Powder Sour Bars have the flavors you crave in a single frozen treat - Prairie Farms creamy, sweet and tangy sherbet made with real milk on the inside and a dusting of Pucker Powder on the outside. This flavor sensation is guaranteed to make your lips pucker. prairiefarms.com. Show us your best pucker face by posting a picture on your Facebook page (at)prairiefarmsdairy, and we'll send you a coupon for a free box (Limit one box per mailing address) of North Star Pucker Powder Sour Bars! Farmer owned. Made in USA.