This bold, bitter cocktail balances two of Italy's most assertive amari against tropical brightness. The menthol intensity of Fernet Branca and the grapefruit bitterness of Campari dominate the palate, while pineapple and lime provide just enough acidity to cut through the herbal weight. Warm cinnamon adds an unexpected spice note that bridges the gap between bitter and sweet, resulting in a drink that's challenging but cohesive.