This Costco Bakery Item Is So Good Shoppers Say It’s a Crime Not to Buy It
Costco’s bakery is known for its consistent selection of popular staples and rotating seasonal offerings that tend to sell quickly. Among them, the Kirkland Signature Butter Cinnamon Sugar Loaf has developed a steady following. Both in-store shoppers and online communities frequently note that it sells out soon after hitting the shelves.
Let’s find out why.
What Makes This Loaf Different from Other Costco Bakery Items
The Butter Cinnamon Sugar Loaf is a dense, buttery pound cake layered with cinnamon swirls and finished with a generous coating of cinnamon sugar. Before it’s coated, it gets rolled in melted butter, which helps the sugar stick and adds even more richness to the outer layer.
One Redditor who claimed to work at Costco shared that each loaf contains nearly a full stick of butter. At 38 ounces, it’s a substantial size and offers several servings per package. According to nutritional information on the chain’s website, one serving includes 410 calories and 33 grams of sugar.
Fans On Social Media Have Elevated It to Cult Status
Once the loaf returned to stores, reactions across social platforms were immediate. Instagram accounts helped boost its visibility by posting video clips and in-store sightings. Some compared it to a churro crossed with a Sara Lee pound cake, while others admitted to intentionally avoiding the bakery aisle to resist temptation. A few users reported buying several loaves at once and storing them in the freezer to avoid missing out.
Ways Shoppers Are Using the Loaf Beyond Dessert

Image via Canva/George Dolgikh
Most people eat the loaf straight from the package, but many shoppers have started repurposing it for other dishes. Some recommend using it to make French toast. The dense texture holds up well when soaked in eggs and grilled.
Other fans have found success using the loaf in the air fryer. A minute or two at high heat brings out a slight crunch on the outside while keeping the middle soft. Another approach involves freezing the loaf, then toasting slices as needed.
Several Instagram users also revealed that the flavor stays consistent even after freezing and reheating. Although the loaf already contains cinnamon and sugar, some people still add butter, whipped cream, or a drizzle of caramel. The versatility adds to its appeal, especially for those who buy it regularly.