If rimming the glass, run a lime wedge along the rim of a rocks glass, roll in salt or Tajín, and fill with fresh ice.

In the bottom of a cocktail shaker, add the fresh blackberries and hot honey syrup, then muddle until the berries are fully broken down.

Add the tequila, triple sec, lime juice, and a handful of ice to the shaker.

Shake vigorously for 15 seconds until well-chilled.

Double strain into the prepared rocks glass over fresh ice to catch any seeds or pulp.

Garnish with fresh blackberries on a cocktail pick and a lime wheel.