I Tried All the Butter I Could Find at Costco — This Is the Best One You Can Possibly Buy

updated May 11, 2022
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Credit: jejim

One of the most distinguishing things about Costco (after its jumbo, bulk packaging, of course) is the fact that the warehouse store doesn’t carry a million different types of things. One or two ketchups, a couple trash bags, etc. But somehow, the other day, I found myself standing in front of half-a-dozen butter options. Salted? Unsalted? Organic? Store brand? Name brand? Because most of us don’t need more than giant package of butter at one time (although it does freeze well!), I made it my mission to determine the very best one to buy. I sampled them all and considered the uses of each one. If you’re going to buy butter at Costco, I can tell you which one to get. Fun fact: It was already a household staple of mine!

Credit: Patty Catalano

Kerrygold Pure Irish Butter, Salted, $11.99 for 32 ounces

Wrapped in shiny gold foil, opening a block of Kerrygold’s salted butter feels like a gift. The sweet milk that comes from grass-fed Irish cows gives each bar a natural golden hue. Irish butter has a higher butterfat content (about 82%) versus a standard American-style butter whose butterfat is 80%. Plus with a rich and creamy — not brittle — consistency, it’s ideal for spreading on toast and creaming into cakes and cookies. It was, hands-down, the best of the bunch. Note: If you’re gonna bake with this stuff, just add a little less salt than the recipe calls for.

Find it in stores: Kerrygold Pure Irish Butter, Salted, $11.99 for 32 ounces at Costco

Credit: Patty Catalano

Almost as exciting as this butter? The low Costco price of this butter! See, I’ve been buying this stuff at my neighborhood grocery store for years; I’d ration my usage, adding thin slivers to get some of that rich butter flavor. But my butter life completely changed once I discovered that Costco carries bulk boxes for a lower unit price than my grocer ($0.37 per ounce at Costco versus $0.57 per ounce). This is especially good news now, considering butter prices are going up!

Have you tried this butter? Tell us what you think.