Rosmarino Fizz

Place all ingredients in a shaker and shake DRY, WITHOUT ICE 15-20 seconds. Then WITH ICE 15-20 seconds strain into a short glass. Place 2 large dashes of bitters inside the dry side of the mixing tin or into the mixing glass, if using a Boston set. Add 1-11/2 oz of soda into the tin using the spout to pour soda over the film left in the tin from the egg white and gather a foamy mixture. They will combine to create a reddish-brown foam/soda mixture which should be used to fill the glass and create an aromatic head to complete the drink.