Aside from the recipe posted by cocktail historian Dave Wondrich, some versions uses pastis or Pernod, which like absinthe are very heavy on the licorice-tasting herb, anise, but which I don’t have in my already well stocked liquor cabinet. One iteration actually increased the proportion of absinthe. If you’ve ever tried it, you know that a little goes a long way, even if you want your brain thoroughly dusted. Another recipe I found a mention of added simple syrup, and I just don’t think adding any additional sugar was needed given the high proportion of sweet vermouth and the relatively sweet and mellow nature of my cheap absinthe. (The brand I used is merely 92 proof; most absinthes are well over 110 and some go as high as 140.)

I stuck with something fairly close to the Wondrich take. Even so, my version of the drink is a bit different than Wondrich’s, but I’ll discuss that after the recipe.

The Brain-Duster

1 ounce whiskey (Canadian or rye, very preferably 100 proof)
1 ounce absinthe
1 ounce sweet vermouth
1 dash aromatic bitters
1 maraschino cherry (optional garnish)

Combine ingredients in a metal cocktail shaker. (If you use a plastic shaker, it’ll take a million washings to get rid of anise/licorice smell of the absinthe.) If you use cracked or crushed ice, stir for a good long time. If you use regular ice, shake for a good long time. Strain into a martini glass with a maraschino cherry for a bit of extra sweetness.

If you really want to get into the brain-dusted vein, you might consider accompanying your beverage with some Syd Barrett era Pink Floyd. Now that’s brain-dusted.

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Mr. Wondrich suggested a 100 proof rye and the Rittenhouse Rye I had on hand should have fitted the bill perfectly. It was nice but still overpowered by the anise flavor of absinthe. (I’m not a big licorice lover, so take that into account.)

The next night, however, I tried with my new friend and a close relative of a heavy duty rye, 100 proof Canadian Club (last discussed here), I was suddenly quite found of the Brain-Duster. I also tried it with regular Canadian Club, and it wasn’t half bad, but 80 proof whiskey and 92 proof absinthe doesn’t quite make for the kind of brain-dusting I needed this week. On the other hand, I tried substituting Bushmills to make this a Hearn, as per Wondrich, which didn’t work for me at all. Maybe with a stronger absinthe…

Oh, and since that 100 proof Canadian Club is very likely not available at your local liquor purveyor, here’s one place that claims to have it online for a very reasonable price. Drink up.