- The Costco Kirkland Signature Artisan Hamburger Buns are pretty substantial buns! Firm and dense on the inside and a little crusty and powdery on the outside. If you’re looking for a soft and fluffy bun, these are not what you’re looking for. That doesn’t mean they’re not tasty though! They make great pulled pork buns because they’re firm and they can easily hold a lot! Despite being quite dense they have lots of little air pockets inside the bun. I’ll also mention that these are quite chewy as well. These are a white bun and don’t have any extra added seeds or that whole grain flavor.
