Was shown the light this past New Years and have been enjoying whiskey sours ever since. Keep forgetting the recipe though.
Pour 2 parts bourbon, 1 part lemon juice (lime’s nice too), ½ part simple syrup, and ½ part egg white in to a shaker with cubed ice and shake hard until very cold. Strain into a tumbler with fresh ice, garnish with orange if you’ve got it.
Aquafaba (the liquid from a can of chickpeas) also works if you don’t want to use egg whites. The egg white from one US large egg is roughly 1 oz.