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For those wondering what a Horse's Neck is, I found this on About.com:
The key to a Horse's Neck is the lemon peel which hangs off the rim of the glass and resembles the neck of a horse hanging into the drink. Sometimes brandy is used instead of bourbon or it can served as a mocktail, which is what I believe was its original intention. For that simply skip the liquor and you'll have a fancy ginger ale.
* spiral lemon peel
* 2 oz bourbon
* 8 oz ginger ale
* 2-3 dashes Angostura bitters (optional)
1. Place the spiral lemon peel into a collins glass.
2. Secure one end of the peel over the lip of the glass.
3. Add ice cubes to the glass.
4. Pour in the bourbon and ginger ale.
5. Add a dash of bitters, if desired.
6. Stir well.