Rolls Royce Cocktail - cooking recipe

Ingredients

4 -6 cracked ice cubes
1 dash orange bitters
2 ounces dry vermouth
1 ounce dry gin
1 ounce scotch whiskey

Preparation

Put the ice in a cocktail glass, and put the orange bitters over the ice.
Mix the dry vermouth, gin and whiskey, stir.
Strain into a chilled cocktail glass.