Ingredients

Glass Rocks
60ml Casamigos Anejo Tequila
1 Spoon light brown sugar
6 drops Ms. Betters Chocolate Bitters

Method

Add sugar to the glass.
Add the bitters and an ice cube.
Stir for 30 seconds.
Fill the glass with ice and add the Casamigos Anejo Tequila.
Stir for 2 minutes.
Garnish with a large orange zest.