Shake vigorously for about 15 seconds until very cold and slightly frothy.
Fine-strain into the prepared glass over fresh ice.
Garnish with a lime wheel or a small lavender sprig. Serve immediately.
Notes
For a richer, sweeter texture use cream of coconut; for a lighter, less sweet style use coconut milk and reduce or omit the agave. Swap mezcal for tequila to add smoky depth. A rim of lavender sugar adds delicate floral aroma—use sparingly. Always use fresh lime juice for the brightest flavor and shake hard to fully emulsify the coconut.Tasting notes: bright lime and orange on the nose; silky coconut mid-palate; gentle lavender finish.