¾ oz pot still unaged overproof Jamaican rum¾ oz unaged agricole rum¾ oz cinnamon syrup (1:1)¾ oz lime juice¼ oz banana liqueur⅓ banana
instructions :

Blend all the ingredients with 6 oz of crushed ice until smooth.

Pour into a glass and add crushed ice to fill.

source :
from Minimalist Tiki