As long as it's unsalted (or salted in the case of the Shortbread), AA butter, the differences will be pretty negligible. You will, however, start noticing changes in all of the above if you use something with a different butterfat content -- like European style butter, for example. For more on this topic, take a read through our related blog post on the best butter for baking: http://bit.ly/2dnwyTS. And enjoy your buttery treats! Mollie@KAF

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