Reacting to our classic Old Fashioned recipe we get the real deal recipe courtesy of our friends at measure and 

If you are fan of the art of the cocktail, this site is a must read.

You were so close, so close, my friend, but soda water has absolutely no place in an old fashioned. In the process of making the drink, you ought to have stirred it to a perfect level of dilution, and adding soda water will only weaken and detract from your creation. Moreover, there is one garnish which is not only appropriate, but which makes a significant contribution to the flavor of the drink: an orange peel.

click below for their classic take on a classic cocktail.