1½ oz blended aged Demerara rum½ oz spiced rum1 oz orange juice½ oz lemon juice½ oz dry curaçao¾ oz orgeat syrup¼ oz pimento dram1 dash Angostura bitters
instructions :

Shake all ingredients with crushed ice and pour (unstrained) into a glass.
Garnish.

source :
Mindy Kucan, Hale Pele (Portland, Oregon)
imbibemagazine.com