When it comes to making an Old Fashioned, there are a few key ingredients that are traditionally used. These include whiskey or bourbon, sugar, water, and bitters. However, there is some room for experimentation and personalization when it comes to this classic cocktail.
One optional ingredient that can be added to an Old Fashioned is Triple sec or Cointreau. These are both orange liqueurs that can add a subtle citrus flavor to the drink. While not a traditional addition, the orange notes can complement the other flavors in the cocktail and add a unique twist.
Personally, I have found that adding a small amount of Cointreau to an Old Fashioned can enhance the overall flavor profile. The orange liqueur adds a hint of sweetness and a bright citrus note that pairs well with the rich and smoky flavors of the whiskey. It can also help to balance out any bitterness from the bitters.
In terms of the amount to use, I would recommend starting with a small amount, such as a quarter to half an ounce, and adjusting to taste. The goal is to enhance the drink without overpowering it with too much orange flavor. It's always better to start with less and add more if desired.
Another ingredient that can be substituted for the sugar cube in an Old Fashioned is orange blossom honey. This can add a smoother texture and a subtly floral flavor to the cocktail. Again, start with a small amount and adjust to taste.
When it comes to bitters, I personally prefer using Regan's Orange Bitters in an Old Fashioned. However, any orange bitters will work well. The bitters add depth and complexity to the drink, and the orange notes complement the other flavors.
To summarize, adding Triple sec or Cointreau to an Old Fashioned is optional but can be a delicious addition. It can add a subtle citrus flavor that complements the other ingredients. Start with a small amount and adjust to taste. Orange blossom honey can also be used as a substitute for the sugar cube, adding a smoother texture and flavor. And don't forget the bitters – they add depth and complexity to the cocktail. Cheers!