If you thought Costco was just for bulk paper towels and frozen chicken, think again! The warehouse giant is a hidden gem for anyone with a sweet tooth. Beyond the legendary bakery cakes, the aisles are packed with international chocolates, specialty cookies, and seasonal desserts perfect for parties or just a late-night indulgence. This guide takes you straight to the most irresistible and highest-value treats you can find right now, making sure your next trip to Costco is a little bit sweeter.