Orange Cooler in Shell

Cocktail Ingredients:
1 oz. 151 proof Rum
2 tsp. Curacao
2 tsp. Lime Juice
1 1/2 tsp. Sugar Syrup
1 Large Orange

Slice off the top 1/8th of the orange and cut out the fruit.
Leave in 1 1/2 oz. of the juice.
Shake well all including the orange juice with cracked ice.
Strain into the orange shell.
Serve with a straw.