From our friend @girlandtonic_
1/2 oz lime juice
1/2 oz rose simple syrup
5 blackberries
5-7 mint leaves
3+ oz ginger beer
(optional 1.5 oz. vodka)
Add the vodka, lime juice, rose simple syrup, mint leaves, and blackberries to a cocktail shaker. Muddle gently but muddle well. Add ice to the cocktail shaker and shake well. Strain into a copper mug or glass that’s filled with crushed ice. Top off the rest of the glass with ginger beer. Stir to incorporate. Garnish with additional blackberries and mint.