This was made out if a desire to have something fresh and summer-y while using up some green tea. You can add simple syrup if you like - I prefer my drinks less sweet. This seems almost healthy to me - thus the name.
1 1/2 oz white rum
1 1/2 oz green tea
1 oz coconut water
1/2 oz lime juice
2 dashes angostura bitters
1 egg white (or 1/2 oz egg white)
Build in shaker, shake hard with ice, strain into coupe, garnish with lime zest and sprinkle of bitters.