Blend the strawberries then push the resulting puree through a sieve to remove some of the seeds. Tip the sieved puree into the blender again and add the ice, rum, 1-2 tbsp sugar syrup depending on how sweet you like your drinks and lime juice. Blend again and divide the mixture between 2 Martini glasses. Garnish with fresh strawberries and pretend you are in the Caribbean.
