Instructions

1. Prepare the simple syrup as far in advance as possible so it has time to cool. Put all ingredients for syrup in a pot. Bring to a boil, remove from the heat and stir to dissolve the sugar. Allow to steep 10 - 20 minutes. Remove the rosemary and discard. Cool and refrigerate until ready to use. Will keep for 2 weeks in the fridge.
2. When thirsty: Prep the garnish first. Place sea salt in a shallow bowl. Run one of the blood oranges around the top of your serving glasses and dip in the salt. Shake off excess. Spear the blood oranges with the rosemary sprigs and set aside.
3. Then, dump all the ingredients for the drink into a shaker or large mason jar, in the order they're listed, save for the soda water; You don't want to add ice cubes too soon or the gin will melt them and you'll end up with a watered down drink. Cover, shake your booty (and preferably the drink mix too) for about 15 seconds. Strain into two prepared glasses, top off with the soda water, balance speared rosemary sprigs on the side of the glass. Serve.
4. Drink your face off.