3⁄4 oz Dry vermouth (Mulassano)
3⁄4 oz Gran Classico
1⁄4 oz Rhubarb syrup
1⁄4 oz Fernet Branca
Stir with ice in old fashioned glass, serve.
Nice bitterness in the first sips. Bitterness decreases a lot with ice cubes melting.
Better use a huge block of ice.
I survived without fernet during one year. Just bought a new bottle.