Make the punch: In a large punch bowl, combine the lemon-lime soda, apple juice, pineapple juice, lime juice, grenadine syrup, and granulated sugar. Stir well to mix the flavors.
4 cups lemon-lime soda, 3 cups apple juice, ½ cup pineapple juice, ¼ cup lime juice, ¼ cup grenadine syrup, ¼ cup granulated sugar
Add a few drops of green food coloring to the punch and stir until you achieve the desired toxic green color (it may take several drops to get a dark green and not brown color).
Green food coloring
Add ice cubes to the punch bowl to keep it chilled, if desired.
Ice cubes
Make the toxic waste foam: In a separate mixing bowl, whip the heavy cream on high using an electric mixer until it starts to thicken (about 2-3 minutes).
¾ cup heavy cream
Add powdered sugar and vanilla extract to the cream and continue whipping until stiff peaks form.
Carefully add a few drops of green food coloring to the whipped cream and gently swirl it in until there are swirls of white and green.
Green food coloring
Assemble the punch: Ladle the green punch into individual cups or glasses, leaving some space at the top for the foam.
Carefully spoon the toxic waste foam on top of each cup, creating a bubbling effect resembling toxic waste.
Add the toxic waste decorations (optional): If you want to make the punch even spookier, add gummy worms, gummy frogs, and gummy snakes to the punch bowl or individual cups.
Gummy worms, Gummy frogs, Gummy snakes
Serve the Toxic Waste Punch to your Halloween party guests and watch them delight in the spooky presentation and delicious flavor!
Notes
Storage:
To Store: Store your punch in the refrigerator for 1-2 days without the foam.
Tips:
Taste the punch before adding the green food coloring. If you prefer a sweeter punch, add a little more grenadine syrup. For a less sweet option, reduce the amount of grenadine.
You can prepare the toxic waste foam topping ahead of time and store it in the refrigerator until you're ready to assemble the punch. Whip it again briefly before adding it to the punch for a frothy texture.
Feel free to get creative and serve your punch in science beakers or a black cauldron with some dry ice.
If you want to make the punch even spookier, add gummy worms, gummy frogs, and gummy snakes to the punch bowl or individual cups.