Doctor's Orders

I was expecting that a drink named for a prescription would include Frenet Branca or some ingredient purporting to be medicinal. In fact, there is the citrus peel and juice of two pomelos, one lemon and three oranges in a bottle of homemade Forbidden Fruit. I don't know if the liqueur preserves the vitamins from these fruits (probably not) but it makes a rich drink even more bitter and tangy.

• 1 oz. gin (Vitae Old Tom used)
• 1 oz. cognac (Larressingle armagnac used)
• 1 oz. Forbidden Fruit
• several dashes lemon juice

Combine all ingredients in a shaker with ice. Shake and strain into a chilled champagne cocktail glass (*Note: in the New American Bartender's Guide, this is the glass listed. I've used this book for decades and this is the first mention of a champagne cocktail glass, which I assume is a coupe or cocktail glass. I chose this antique cocktail pony glass--good for champagne cocktails or hard liquor in general.)