Rubik's Cube
Peel of pink grapefruit.
Shake all ingredients and fine strain into chilled glass.
[['5 cl', 'Havana Club 7yo rum'], ['2 cl', 'Cherry Heering cherry brandy liqueur'], ['2.5 cl', 'Lime juice (freshly squeezed)'], ['2 cl', 'Cinnamon sugar syrup'], ['6 dash', 'Angostura Aromatic Bitters'], ['1 spoon', 'Peppercorn syrup 1:1 (homemade)']]
[['5 cl', 'amber rum'], ['2 cl', 'cherry brandy liqueur'], ['2.5 cl', 'lime juice'], ['2 cl', 'cinnamon sugar syrup'], ['6 dash', 'angostura'], ['1 spoon', 'peppercorn syrup 1:1']]