2tspluxardo(traditional recipes use ¼ ounce or 1.5 tsp)
¼tspteaspoon aromatic bitters (traditional recipe calls for Amer Picon, a bittersweet French aperatif; not easy to find but worth searching out; ¼ ounce if you can find it)
1lemon twist
Method
Combine all the liquids in a mixing glass with ice and stir till chilled. Strain into an old fashioned glass with one big rock or into a chilled coup. Garnish with lemon twist.