My personal favorite cocktail I've ever made. You can find it at Stacks on Magazine
1.75 oz Papa's Pilar Dark
.75 oz Barrow's Intense Ginger
.25 oz Fernet Branca
2 dashes Regan's Orange Bitters
Chill a rocks glass. In a mixing glass add the pilar dark, Barrow's, and ice. Stir 10-15 times. Wash the chilled rocks glass with the fernet. Strain the cocktail into the glass. Add the bitters. Take the lime wheel and slightly express until a few drops of juice drop from the wheel and then drop directly into the glass. Enjoy.