Rob Roy 

Ingredients:
- 1 1/2 ounces (1 jigger) Scotch
- 1 1/2 ounces (1 jigger) sweet or dry vermouth
- Dash of Angostura bitters
- 1 lemon twist for garnish
- Ice cubes

Directions:
- In a small cocktail pitcher combine the Scotch, the vermouth, the bitters, and 1 cup ice cubes, stir the mixture well, and strain it into a stemmed cocktail glass. Garnish with the lemon twist.