Who Makes Kirkland Signature Malbec Wine? Chris Lehoux, November 7, 2026 Costco’s Kirkland Signature Malbec is made by Broquel Winery, a wine line from Argentina’s Trapiche Winery. The bottle’s label identifies Mendoza, a region in western Argentina known for producing malbec. Trapiche’s chief winemaker, Sergio Casé, is also named on the label. The grapes grow in the foothills of the Andes at elevations of about 2,800 to 3,300 feet. After harvest, the wine spends a year aging in French oak barrels before being bottled under the Kirkland Signature label. The result is a deep-colored red with plum and cherry notes, a smooth finish, and hints of cocoa, oak, and spice. Despite its Mendoza origins and oak aging, the 750-milliliter bottle typically costs about $8 at Costco. Broquel’s malbec can sell for roughly $15 to $20 at liquor stores. Costco shoppers have praised the wine online for its taste and value, with some saying they buy it by the case. Others recommend using it in cooking, while noting the general rule that cooking wine should be one you’d enjoy drinking. About the Author: Chris Lehoux Meet Chris Lehoux, an experienced wine connoisseur and dedicated blogger with a deep passion for all things wine-related. With years of expertise in the industry, Chris shares insightful wine reviews, valuable wine tasting tips, expert pairing advice, and captivating tales of vineyard visits. Join Chris on a journey through the world of wine, where every sip is an adventure waiting to be savored! Wine