A classic whiskey sour made with bourbon, fresh lemon juice, and simple syrup in a balanced 2:1:1 ratio. Shake it cold and serve over fresh ice in about 5 minutes.
Substitutions: Rye whiskey gives a drier, spicier profile. Bottled lemon juice works if necessary, though fresh tastes better. Honey syrup or maple syrup can replace simple syrup and will change the sweetness and depth.
Serving: Serve immediately while well chilled. Pair with salty snacks, grilled meats, or fried appetizers.
Storage: Best prepared fresh. The liquid mixture without ice can be refrigerated for up to 24 hours; shake with ice before serving.