Fat Tire
Orange zest twist
SHAKE all ingredients with ice and fine strain into ice-filled glass.

(If you don't have Nardini Amaro then sub with Ramazzotti Amaro or Averna Amaro.)
[['4.5 cl', 'Havana Club 7yo rum'], ['3 cl', 'Nardini Amaro'], ['1.5 cl', 'Orange juice (freshly squeezed)'], ['1.5 cl', 'Pineapple juice (fresh pressed)']]
[['4.5 cl', 'amber rum'], ['3 cl', 'nardini amaro'], ['1.5 cl', 'orange juice'], ['1.5 cl', 'pineapple juice']]