For the Smash:
For the Syrup:
[use a kitchen scale]
For the Smash:
(1) Muddle the fruit in the bottom of a cocktail shaker until very juicy and pulpy. Add remaining ingredients and small handful of ice.
(2) Shake for 10 seconds and strain into a chilled pilsner glass filled with crushed ice. Add more crushed ice to top and garnish with stone fruit slice. Serve with a straw.
For the Syrup:
(1) Stir rapidly until completely combined. Store in the fridge.
*TIP*: If you don't have a kitchen scale, use 2/3 cup honey and 1/3 cup hot water.