Crush 8 ice cubes into pieces about ½ inch big.

Store in freezer until ready to use.

Place the blackberries in the bottom of a rocks glass. Smash with a muddler or the back of a spoon.

In a cocktail shaker, place the gin, lemon juice, and Rosemary Thyme Syrup.

Add ice (enough to cover the liquids ) and shake for 30 seconds until the shaker is cold.

Add the crushed ice to the glass with the smashed blackberries.

Strain the cocktail over the blackberries.

Garnish with a rosemary sprig.

Rosemary Thyme Syrup

Combine the sugar, water, rosemary and thyme sprigs.

Heat over medium high heat until the sugar is completely dissolved,stirring frequently.

Remove from the heat and let the herbs steep for 15 minutes.

Strain the syrup into a clean glass jar.

Store in the refrigerator.

The syrup will last about 2 weeks.