Sazerac

Official Sazerac Recipe

"Take two heavy-bottomed 3 1/2-oz. Bar glasses; fill one with cracked ice and allow it to chill while placing a lump of sugar with just enough water to moisten it. Crush the saturated lump of sugar with a bar spoon. Add a few drops of Peychaud's Bitters, a jigger of rye whisky and several lumps of ice and stir briskly. Empty the first glass of ice, dash in several drops of Herbsaint, twirl the glass rapidly and shake out the absinthe. Enough of it will cling to the glass to impart the desired flavor. Strain into this glass the rye whisky mixture prepared in the other glass. Twist a lemon peel over the glass, but do not put it in the drink."

Simplified version

2 ounces 100 proof rye 1/2 ounce simple syrup A few dashes bitters A few dashes pastis

Build in a glass over ice, garnish with a lemon twist.