Costco's Kirkland Signature Grass-Fed Butter is a more affordable alternative to Kerrygold. For some shoppers, the butter ...
If you've tried out Costco's Kirkland brand grass-fed butter, you may be wondering who makes it. Here's what to know about ...
The other main difference: Kirkland's grass-fed butter hails from New Zealand, not Ireland, like Kerrygold. The biggest difference between these premium butter offerings? The price. At my Costco ...