Measure brown sugar in a bar jigger, do not pack. Using a citrus reamer, extract the juice from an orange and measure 3 oz of juice.
In a Boston shaker, combine together Arrogante Reposado tequila, freshly squeezed orange juice, brown sugar and 2 small dashes of ground cinnamon. Add ice and shake vigorously for 15 to 20 seconds.
Strain the drink into a chilled glass through a fine mesh strainer to remove orange pulp and seeds. Garnish the cocktail with a small pinch of ground cinnamon and the wedge of orange.
Serve with a straw.
Jeannette Condon (Allegro Bistro, New Orleans)