I ordered a cake using Costco's 'mysterious' box system, and will never doubt the big-box retailer's methods again

The custom Costco cake came on time and exactly as requested.Jordan Parker Erb/Insider

• In May, a tweet shed light on Costco's cake-ordering process, which some people called outdated.
• You can't call to order — you must write your order on a form and physically slip it into a box.

Last month, a tweet about Costco's cake-ordering process went viral, with the big-box retailer's method baffling Twitter users (myself included). The tweet, from user Lucy Huber, pointed out that if you want to order a cake from Costco, you must write down your order and place it into a box — you can't call or order online.

Some people were quick to call the "mysterious cake box" old school or outdated, with Huber herself saying it felt like a system created in the 1800s. But what most surprised me wasn't the box itself — it was some other commenters' impassioned responses to Huber's tweet.

On Twitter users assured her the cake would be there, with one saying they trust Costco's paper-in-box method "more than the USPS."

This level of fervor from Costco fans persuaded me. With my cousin's bridal shower coming up, it was time to try the mysterious cake box for myself.