Serious Eats - seriouseats.com

Here is mine:

2 oz Vodka or Gin
Worchestershire Sauce to taste
A Few Dashes Celery Seed
Fresh Ground Horseradish to taste
A Few Dashes Salt and Pepper
Three Dashes Tobasco
A Few Dashes Ground Mustard
1/2 oz Guinness or other Stout
Lemon and Lime Juices From Muddling
Three Dashes Angostura Bitters
Tomato Juice

In the bottom of a mixing glass, put two lemon and two lime wedges, salt and pepper. Muddle to extract all the juice from the Citrus.
Add the remaining ingredients and fill with ice.

"Roll" the mixture back and forth from mixing glass to shaker tin and back again a few times.

Fill a tall glass or Collins glass with fresh ice and strain mixture from mixing glass into serving vessel.

Garnish how you see fit. I like a pickled green bean and Lemon wedge.