
Few cocktails hit the way a well-made whiskey sour does — tart, a little sweet, and impossibly smooth with that signature frothy top. The secret to that cloud-like foam is a pasteurized egg white, which gets shaken first without ice to build maximum aeration before the cold shake locks it all in. Every ingredient here is straightforward and real: bourbon, fresh lemon juice, and a simple syrup you can easily make at home, so there's no need to reach for pre-made sour mixes loaded with synthetic flavoring agents. Skipping those bottled shortcuts means you actually taste the whiskey and the bright citrus the way they're meant to come through. The double-shake technique — dry first, then with ice — is a small extra step that makes a genuinely noticeable difference in texture. A strip of lemon peel or a maraschino cherry on top makes it look like something a skilled bartender just handed you across a polished bar. Once you make it this way, the mix-from-a-bottle version just won't cut it anymore.
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Combine the bourbon, lemon juice, simple syrup, and pasteurized egg white in a cocktail shaker without ice. Seal and shake vigorously for 15 seconds, until the mixture is foamy.
Add a generous handful of ice to the shaker, seal, and shake again for another 10–15 seconds, until the outside of the shaker is very cold.
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