Freeze your mixing glass and serving glass for at least 15 minutes before preparing to keep the drink perfectly cold without excessive dilution from melting ice.

Press mint leaves between your palms or tap them against the glass to release essential oils, but avoid over-bruising which releases bitter chlorophyll and darkens the leaves.

Always use freshly squeezed lemon juice rather than bottled—squeeze immediately before mixing to preserve the bright citrus notes that define a premium bourbon smash.

Choose a bourbon with 90-100 proof and a balanced flavor profile (not overly spicy) as it will mellow beautifully with citrus while maintaining character, avoiding lower-proof options that become too diluted.

Shake vigorously for 10-12 seconds with ice to properly chill and dilute the drink, then fine-strain into your prepared glass to catch any small ice chips or mint particles for a silky texture.