Preparation:

Step 1: Prepare the glass by rimming it with sugar. Run a lime wedge around the rim of the glass, then dip the rim into black sugar or regular sugar for a frosty effect.

Step 2: In a cocktail shaker, combine dark rum, blackberry liqueur, fresh lime juice, simple syrup, and black food coloring (if using). Shake well for about 20-30 seconds until well-mixed and chilled.

Step 3: Fill the rimmed glass with crushed ice, then strain the cocktail mixture over the ice.

Step 4: Add a splash of club soda on top for a slight fizz.

Step 5: Carefully place a small piece of dry ice into the glass for a smoky, bubbling effect. Make sure not to touch or ingest the dry ice directly.

Step 6: Garnish with a lime wedge, blackberries, or a few gummy worms for a spooky touch.

Variations:

• Berry Blast: Swap the blackberry liqueur with raspberry liqueur and add fresh raspberries for a tart twist.
• Witch’s Brew: Add a splash of blue curaçao for a more vibrant color and a hint of citrusy sweetness.
• Non-Alcoholic Version: Replace the rum and liqueur with a combination of blackberry juice, lime juice, and grape soda for a kid-friendly mocktail.