A Rusty Nail is a cocktail made by mixing Drambuie and Scotch Whiskey. The drink was included in Difford's Guide's Top 100 Cocktails.
A Rusty Nail can be served in an old-fashioned glass on the rocks, or "up" in a stemmed glass. It is most commonly served over ice. A Rusty Nail served without ice is sometimes called a Straight Up Nail.