Start by gathering all of your equipment. I recommend chilling your mixing glass before you start to prevent your ice from diluting too quickly.
Next add 60 ml Rye or Bourbon Whiskey, 20 ml Sweet Vermouth and 2 dashes Angostura Bitters together in your mixing glass.
Add ice. Enough that your mixing glass is over 2/3 full.
Slowly mix your ingredients with the ice to dilute for about 10 seconds. Try to be gentle as you don't want to break the ice.
Once you have enough dilution use your Julep strainer to transfer the mixture into your Coupe glass. Make sure it chilled to help keep the liquid cold for longer!
To garnish place 1 Maraschino Cherry into the glass and allow it to sink to the bottom.
voilà! You have just made a Manhattan. Now all that's left to do is put your feet up in front of the fireplace, sit back, and enjoy a perfectly balanced Manhattan.