You will need:

• 60ml Whisky 
• 30ml sweet Vermouth
• 2 dashes Angostura Bitters
• 1 dash Orange Bitters
• Lemon Twist or Maraschino Cherry to garnish 

To make:

1. Add the whisky, vermouth and both bitters to a mixing glass with ice and stir until well chilled
2. Strain into a chilled coupe 
3. Garnish with a maraschino cherry or lemon twist