Instructions

  1. Muddle mint, simple syrup or sugar, berries and lime juice.
  2. Fill glass with crushed ice — it is very important to use crushed ice, not cubed — then add rum.
  3. Stir well until the ice is reduced by 1/3, then top with more crushed ice, stirring until glass begins to frost on the outside.
  4. Spritz with soda water and stir one last time to incorporate.
  5. Garnish with a sprig of fresh mint.