Rum Flip

Glassware: Chilled coupe

1 medium egg
1/4 oz. demerara syrup
2 oz. blended aged rum

Garnish: Freshly grated nutmeg

Add the ingredients to drink mixer tin and dry flash without ice for 10 seconds. Fill with 12 ounces of crushed ice and 4 to 6 small "agitator" cubes. Flash blend and double-strain into a chilled coupe glass. Top with freshly grated nutmeg.

Source: How to Mix Drinks, or the Bon-Vivant's Companion