In a cocktail shaker, combine the rum, lime juice, orgeat syrup, orange curaçao, and a dash of simple syrup.
Add ice and shake well for about 10 seconds. This mixes all of your ingredients together while chilling the cocktail at the same time.
Strain the liquid into a glass filled with ice. Straining removes any small pieces of ice that may have broken off during shaking.
Garnish with a lime slice and/or a sprig of mint.