In households with only two people, maintaining a Costco membership might not seem cost-effective. Items like toilet paper, paper towels, and tennis balls can be found elsewhere at competitive prices. Snacks such as Pirate’s Booty, trail mix, or peanut M&Ms, although enjoyable, aren't essential. However, one item stood out as irreplaceable: Kirkland Signature Parmigiano Reggiano. This cheese plays a central role in various dishes, from simple pasta meals to creamy soups and decadent baked chicken Parmesan.

This particular variety of Parmesan offers exceptional value, priced at approximately $0.78 per ounce compared to $1.70 per ounce at other grocery stores. In specialty markets, the price may climb even higher. The high quality stems from its origins in the Parma and Reggio Emilia regions of Italy, where it has been produced since medieval times by monks seeking a long-lasting cheese. It adheres to strict production standards monitored by the Consorzio del Formaggio Parmigiano-Reggiano and falls under DOP regulations enforced by the European Union. These guidelines ensure the cheese retains its dense, crumbly texture with crunchy amino acid crystals and delivers a fruity, slightly sweet, and nutty flavor profile.

Despite its advantages, there is one potential drawback: the wedges typically weigh around 2 pounds each. Once opened, the cheese lasts about two months in the refrigerator. To maximize shelf life, wrap it in wax or parchment paper followed by aluminum foil, avoiding plastic wrap which can trap moisture and cause mold growth. Thankfully, friends and coworkers help keep supplies well-stocked.

For those who cherish authentic Parmigiano Reggiano, Costco's offering provides an unbeatable combination of affordability and quality. Its versatility makes it indispensable in kitchens across the country, enhancing countless recipes with its rich flavor and superior texture. Proper storage ensures enjoyment over an extended period, making it a practical choice for any household.