Syrup

1. In a pot, combine 5 fresh, peeled longan, 1 cup of water to ⅓ cup of honey
2. Bring to a bowl, lower heat to simmer for at least 40 minutes
3. Allow to reduce, remove from heat, strain and chill

Method 

1. In a shaker, add longan honey syrup, lemon juice and berries; muddle
2. Add ice and shake
3. Strain into highball glass with fresh ice and muddled berries
4. Top with soda water
5. Garnish with hand torn mint and  Rosemary sprig