The Rusty Nail is a famed cocktail that's been served to bar-hoppers for years. While it takes a while to really nail down how you want yours done, this simple cocktail is one that's easy to make and doesn't require a whole slew of ingredients.
The Rusty Nail can go ungarnished, though some people like to add in the lemon twist for an added flavor.
There are many people who also like to fiddle around with the servings of Scotch and Drambuie to their liking. If you're just starting out with the cocktail then it might be best to try and stick with the recipe provided here. Also, keep in mind that once you start experimenting with other Scotches, you're bound to sample different servings.
One last pro tip: if you don't want to use ice and dilute the flavor, you should look into getting an ice ball.