Originally Posted by indesertum
i dont know what it's called by i substituted the brandy in a sidecar for whiskey. was quite good
It's a versatile formula- you can use pretty much any liquor on the planet and wind up with a great result. Many of those variations are defined as drinks in their own right- most prominent among them the White Lady, which is when you use gin. IIRC, the bourbon version is rather boringly named a Bourbon Sidecar.