Blacklight Swamp Shot Recipe: Glow-In-The-Dark Party Drink

So creepy and delicious, Black Light Swamp Water Shots are a darkly glowing, spooky drink perfect for a Halloween party, haunted gathering, or any occasion that needs a little extra eerie flair.

three black light swamp water shots in a test tube rack next to a jar of lemon boba pearls

Why we love Black Light Swamp Water Shots

  • These shots look like something dredged from a haunted bog but taste delightfully sweet and festive, perfect for getting guests in the spooky spirit.
  • The recipe is straightforward: with simple preparation and a bit of advance planning you can assemble everything quickly.
  • Under a black light the shots glow eerily thanks to a tiny amount of Vitamin B2, but flavor-wise they’re a strawberry rum drink with bright, lemony boba pearls for a fun texture.
  • Serve them in test tubes and a rack for maximum impact — they make a memorable centerpiece and are a great conversation starter.
close up of black light swamp water shots glowing in a test tube rack

Ingredients you’ll need to make Swamp Water shots

Eggs of Newt (boba): large unflavored tapioca pearls or boba, lemon juice, and granulated sugar.

Swamp Water: strawberry rum (or a clear/flavored spirit you prefer), red and green liquid food coloring, and a Vitamin B2 capsule (use the finely ground capsule contents — not tablets).

To assemble each shot: pink cranberry juice cocktail (or white cran-strawberry) plus the prepared swamp water and lemon boba.

ingredients to make black light swamp water shots with text labels

How to make glow-in-the-dark shots

Step 1 — Make the boba. Prepare the tapioca pearls according to package directions. When cooked, combine the pearls with lemon juice and granulated sugar; let them sit so they absorb the citrus-sweet flavor.

sugar mixed with unflavored boba pearls next to a cup of lemon juice

Step 2 — Make the swamp water. Pour the rum into a small pitcher or measuring cup. Carefully split open a Vitamin B2 capsule and add a very small pinch of the powder to the rum — a little goes a long way. Stir until incorporated; the liquid will turn a bright yellow. Add one drop each of red and green food coloring and stir until you reach a dark, mossy green.

strawberry rum in a measuring cup with vitamin b2, red food coloring, and green food coloring

Step 3 — Assemble the shots. Using a funnel, pour about 1 ounce of pink cranberry juice into each test tube or shooter glass, then add about 1.5 ounces of the swamp water rum. Add a spoonful of lemon-bathed boba pearls; they will settle to the bottom. Seal or cover and chill until serving.

funnel in a test tube filled with pink cranberry juice cocktail and swamp water rum next to a jar of lemon boba

Tips & tricks

  • The swamp water mixture can be made ahead and refrigerated. Boba is best prepared shortly before serving for optimal texture.
  • Boba pearls are widely available at Asian markets, many grocery stores, or online. Check package instructions — some varieties require soaking while others cook quickly.
  • If you don’t have strawberry rum, vodka or light rum work fine. Choose a spirit flavor that pairs well with lemony boba and cranberry juice; citrus or tropical flavors are good alternatives.
  • Test tubes and racks are easy to find around Halloween at craft stores or online; a rack adds a dramatic display.
black light swamp water shots in test tubes in a wooden rack

Black Light Swamp Water shot FAQ

Is it safe to use Vitamin B2 in drinks?

Yes. Vitamin B2 (riboflavin) is water-soluble and commonly found in foods and supplements. When added in a very small amount it creates a glowing effect under black light. Avoid adding too much, as excess can create a bitter taste.

What liquors glow under black light?

No liquor inherently glows under black light, but mixing spirits with ingredients like Vitamin B2, tonic water (contains quinine), certain energy drinks, or clear sodas can produce a glow. Experiment carefully with small amounts to control flavor and appearance.

black light swamp water shots in a test tube rack under black light

Other recipes you may like

  • Witches Brew Halloween Punch
  • Black Magic Jello Shots
  • Beetlejuice Cocktail
  • Forbidden Forest Test Tube Shots
  • Succubus Kiss Halloween Shots
square image of black light swamp water shots half regular and half under black light

Black Light Swamp Water Shots

Julie Kotzbach

Creepy, glowing shots that are as fun to serve as they are to drink—great for Halloween and themed parties.
5 from 1 vote
Print Recipe
Pin Recipe

Prep Time
15
Total Time
15

Course Drinks
Cuisine American

Servings
6 shots
Calories 93 kcal

Equipment

  • Small bowls
  • Liquid measuring cup
  • Test tubes or shooter glasses
  • Test tube rack or serving tray
  • Funnel

Ingredients

Eggs of Newt

  • 1/4 cup unflavored white boba or tapioca pearls
  • 1 tablespoon granulated sugar
  • 1 tablespoon lemon juice

Swamp Water Rum

  • 6 ounces strawberry rum (or clear/flavored spirit)
  • 1 drop red food coloring
  • 1 drop green food coloring
  • 1 capsule Vitamin B2 (riboflavin)

Swamp Water Shots

  • 1 ounce pink cranberry juice cocktail (or white cran-strawberry)
  • 1.5 ounces swamp water rum
  • 1/2 tablespoon eggs of newt (lemon boba)

Instructions

Eggs of Newt

  • Prepare the boba pearls according to package directions.
  • Add sugar and lemon juice to the cooked boba and stir. Let sit so the pearls absorb the flavors.

Swamp Water Rum

  • Pour the rum into a measuring cup. Open a Vitamin B2 capsule and sprinkle a very small amount of powder into the rum — a little is sufficient. Stir until it dissolves and turns bright yellow.
  • Add the red and green food coloring and mix until the mixture is a dark, swampy green.

Swamp Water Shots

  • Place a funnel in a test tube. Pour in the pink cranberry juice, then add the swamp water rum. Spoon in the lemon boba (it will sink to the bottom). Repeat for remaining shots.
  • Seal with lids or cover and refrigerate until serving. Consume boba within a few hours for best texture.

Notes

  • Scale the recipe easily to make more shots. If you prefer, use shooter glasses (3.5 oz or larger) instead of test tubes.
  • If pink cranberry juice isn’t available, a white cran-strawberry juice works as a substitute.

Nutrition

Serving: 1 shot
Calories: 93 kcal

All nutritional information is an estimate and may vary based on brands and portion sizes.

Keyword black light shots, swamp water shots


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