2 oz White Rum
5 Lime Pieces
¾ oz HipStirs Blackberry Mint Syrup
Brown Sugar Cube

Slice a lime in half, quarter each half, combine 6 pieces of lime, sugar cube, and syrup in tin, muddle (break down the sugar cube and express the limes thoroughly), add rum, add ice halfway up small tin, aggressively shake, dump ingredients into rocks glass, enjoy