1 tablespoon (1/2 oz) white sugar
1/2 oz water
5-6 mint leaves (plus more for garnish)
2 ounces cognac
1/2 ounce rye
Garnish: mint sprig and fresh seasonal berries
Add sugar and water to the bottom of a rocks glass or julep cup and stir to start dissolving. Add 5 to 6 mint leaves and gently press with a muddler to release their oils (don’t over-crush them or they can get bitter).
Fill the glass with finely crushed ice and add cognac & rye. Stir to combine and top with more crushed ice to mound over top. Garnish with a bright green sprig of mint leaves, and if desired, a few fresh raspberries or blackberries. Serve with a straw.
The Prescription Julep was created in 1857, and according to cocktail historian David Wondrich, it’s one of the tastiest mint julep recipes he knows.
Rather than using the traditional bourbon whiskey, this julep recipe calls for a mix of cognac and rye whiskey. Wondrich says this combination is “a marriage made in heaven, the cognac mellowing the rye and the rye adding spice to the cognac.” While the used of Cognac & Rye may seem unusual, back in the Julep’s heyday in the mid 1800s, there were several variations, some even using gin or fortified wines like sherry or madeira.
This recipe came from a tongue-in-cheek medical joke made in 1857 in Harper’s Monthly, in a serial called “A Winter in the South”. In it, one doctor “Quackenboss” writes out a prescription, in Latin medical abbreviations, for this julep recipe. When translated into English, the prescription calls for white sugar, spring water, strong cognac, spirits of rye, mint leaves, and powdered ice.
At the bottom of the prescription, he adds a recommendation for dosage,
“Repeat dose three or four times a day until cold weather.”
“Quackenboss, M.D.”
Wondrich recommends using good, old cognac, since it’s the main base spirit, but says there’s no reason to splurge on the rye which is really just there to spice up the cognac. The original recipe doesn’t call for it, but he also recommends topping the prescription julep with some aged Jamaican rum and garnishing with a few fresh raspberries or blackberries.