Ingredients:

• 1 oz. fresh line juice
• 1 oz. grenadine
• 1 oz. gold puerto rican rum
• 1 oz. demerara rum

Garnish:

• Lime skin cut to look like a skull (see pic)

Instructions:

Shake vigorously with ice cubes. Pour unstrained into a skull mug. Enjoy!

Simple recipe for real grenadine:

Instructions:

Equal amounts of simple syrup and pomegranate juice (Either POM brand or make your own from fresh pomegranates) Another source calls for 2 cups of bottled POM juice brought to a boil, add 2 cups sugar until dissolved. Sounds too sweet to me.