Combine the herbs and spices in a mortar and grind to a coarse powder.
To make the Fernet Branca bitters, combine 30 ml (1 oz) of the essence with 1700 ml of 40% alcohol and 190 ml of simple syrup.
Fernet Branca
by Darcy O'Neil :: [Bitters]
Fernet Branca is a generic term for an amaro type bitter made from a number of herbs and spices and usually served as a digestif after a meal.
The Toronto Cocktail is a cocktail the incorporates Fernet Branca and is a twist on the classic Manhattan. Fernet is also the preferred post-shift bar shot of the professional bartender.
Iva is known in Switzerland as forest lady's herb (Wildfräulein Kraut) and has been used there for centuries as a stomachic tonic.