Step 1: Choose the Right Glass

For the best presentation, use a highball glass or a hurricane glass. These tall, curved glasses allow the colorful layers to show beautifully.

Step 2: Add Ice

Fill your chosen glass halfway with ice cubes. This keeps the cocktail chilled and also helps maintain the separation of layers when you add grenadine later.

Step 3: Shake the Base Ingredients

In a cocktail shaker, combine the light rum, coconut rum, pineapple juice, mango juice, passion fruit syrup, and lime juice. Add ice to the shaker and shake vigorously for about 15 seconds. This step chills the mixture and ensures the flavors blend smoothly.

Step 4: Strain into the Glass

Strain the mixture into your glass over the ice. At this stage, the drink will have a golden-yellow color with tropical aromas already filling the air.

Step 5: Add Grenadine for the Prism Effect

Slowly pour the grenadine into the glass. It will sink to the bottom naturally, creating a layered look that shifts from deep red at the base to golden-yellow at the top. This step is what gives the cocktail its distinctive “prism” effect.

Step 6: Garnish and Serve

Finish the drink with a pineapple wedge and cherry garnish. Serve immediately with a straw or stirrer. For the best experience, enjoy the drink without mixing at first so you can savor the evolving flavors as you sip through the layers.