Been meaning to try this from Dave Arnold's amazing book Liquid Intelligence. Original made muddling with liquid nitrogen, alas I have none. So did the blender muddled way. Great color, fresh flavor, amazing drink all around.
2 oz White Rum
.75 oz Lime Juice
.75 oz Simple Syrup
6-7 large Thai Basil Leaves
Couple drops salt solution
If doing in blender double or triple recipe to ensure you have enough liquid to cover blender blades.
Put basil and rum in blender. Turn on low for a few seconds. Move to high for a few seconds, about 3-5 and stop.
Strain into shaker to remove most of the basil. Add simple,lime juice, and salt solution.