Achieving balance, ideal dilution and a good chill are essential to the enjoyment of this spirituous sublime classic.
Pre-batched bottled version serves...
Probably my favourite cocktail. Although I have been known to use hibiscus and cardamom syrup (delicious) I agree that demerara syrup is the way to go. I also prefer straight orange bitters, although I had one with chocolate bitters last night that was tasty. Straight rye whiskey is my go-to, but also a wedge of citrus, ideally orange. It really balances the drink. As does the addition of a Luxardo maraschino cherry. I couldn't imagine an old fashioned without one!
I've only recently begun to try the OF. I've played with its sweet, spicy, and bitter elements to achieve a balance my wife and I enjoy a lot: Using your recipe, for bitters, I substitute 3 each of Angostura and Orange, plus 2 of Walnut, and for the sweet, I use 1/4 oz of the syrup from the Maraschino cherry jar and 1/4 oz Demerara. We like it.
I like the old fashioned Old Fashioned! I have gone to using a tsp of light brown sugar and 1/2 ounce of water with 1/2 of triple sec too for an orangey sweetness.
I should mention too that I use 2 shots of Bourbon. I prefer that to Rye or a mix of Bourbon and Cognac or brandy. Use 6 to 9 dashes of Angostura bitters to wet the brown sugar.
I also like it slightly sweeter and use a touch more sugar than this. Agree dark sugar is the way to go.
And like you I appreciate an orange note.
I get it from using a mix of orange bitters with angostura bitters, but primarily from spraying an orange zest through a match flame onto the surface at the end. My children enjoy the fireball that makes, I enjoy the massive orange aroma notes this adds.