Buy: Kirkland Signature Organic Peanut Butter, $9.99 for 2 (28-ounce) jars of peanut butter at Costco. This article originally published on The Kitchn.

Ali Bonar and Eric Katz, co-founders of Oat Haus in Brooklyn Heights, Ohio, are trialing the sale of their cookie dough granola butter in more than 100 Costco stores in the Midwest.