King’s Hawaiian just broke 60+ years of tradition, and Costco shoppers are the lucky ones cashing in first. Forget the sweet rolls you’ve been stacking sliders on for every backyard party since forever — there’s a new bag in the bread aisle, and it’s going savory. The King’s Hawaiian Savory Butter Slider Buns have quietly popped up in warehouses (mostly across California so far), and the people who’ve found them are already stockpiling.
This one’s a genuine sleeper hit: it wasn’t even supposed to be sold to regular shoppers yet.
What Makes These Buns Different
King’s Hawaiian built its whole empire on sweetness — that pillowy, slightly sugary roll everyone fights over at Thanksgiving. The new Savory Butter Slider Buns flip that script entirely. They’re made with real butter, eggs, dairy and an enriched dough, landing somewhere between a soft dinner roll and a proper brioche bun. The result is richer, more savory, and sturdy enough to actually hold up under a loaded slider instead of turning to mush by bite three.
The Butter Buns technically debuted as a foodservice-only product for restaurants, which is exactly why this Costco sighting is such a big deal. A 24-count package is going for about $6, which is a steal considering these were originally built for professional kitchens.
“It lands somewhere between a pillowy dinner roll and a proper brioche bun, built for sandwiches that need the bread to actually pull its weight.” — on King’s Hawaiian’s new Butter Bun line
Why Shoppers Are Racing to Find Them
Costco has a well-earned reputation for turning bakery finds into full-blown TikTok moments — see also the pretzel bagels that broke the bakery section — and this drop is following the same playbook. Right now the Savory Butter Slider Buns have only been spotted at around 50 warehouses nationwide, with the heaviest concentration in California, which means most shoppers are either driving out of their way or crossing their fingers on their next warehouse run.
That scarcity is doing exactly what it always does at Costco: making people want it more. Limited runs like this one tend to disappear from shelves fast, and there’s no confirmation yet on whether it’ll roll out wider or stay a regional flex.
What To Build With Them
These buns are basically begging to carry something with real weight behind it. Pulled pork drenched in barbecue sauce and topped with a quick slaw is the obvious move — the butteriness of the bun balances the tang perfectly. Smashburgers work just as well, and so does a breakfast sandwich stack with egg, cheese, and crispy bacon. If you’re already planning a Sunday meal-prep haul, grab a rotisserie chicken or a tray of those food court chicken tenders while you’re there — both make an easy, no-fuss slider filling with these buns.
Because the dough is enriched with real butter and eggs, these also toast up beautifully on a griddle with just a light char, which makes them a solid upgrade for pretty much any backyard cookout menu this summer.
Where and When to Grab a Pack
Availability is still spotty and skewed heavily toward California warehouses, so your best bet is checking the bakery or bread aisle next time you’re in, or calling ahead to your local Costco. Since this started as a foodservice-exclusive item, there’s a real chance Costco is just testing the waters — which means it could either expand to more warehouses soon, or vanish just as quietly as it showed up. Either way, if you spot the orange bag with the fan-shaped bow on top, it’s worth grabbing before it’s gone.
Have you found the Savory Butter Slider Buns at your Costco yet? Let us know in the comments, and keep it locked here — we’ll update this post the moment we hear about a wider rollout.
Photo credits: Image 1 — King’s Hawaiian Holding Co., via Tasting Table. Image 2 — King’s Hawaiian, via Foodbeast.
