Learn how to make candy glow under UV by adding vitamin B2! In this Halloween episode of Becky’s Workshop, we whip up some kryptonite candy, as seen in BrittLiv’s Instructable. See the complete how-to on Make: Projects.
Subscribe to the CRAFT Podcast in iTunes, download the m4v video directly, or watch it on YouTube or Vimeo. Music by i am jen.

For this project you need:
- 1.5 cups sugar
- 150mL (just over 1.25 cups) water
- vitamin B2 capsules
- aluminum foil
- heavy pot
- candy thermometer
- whisk or spoon
- electric green food coloring
- flavor oil like mint or green apple
- UV flashlight

Inspired to craft something for Halloween? Be sure to enter it in our CRAFT Halloween contest to win lots of cool prizes, including a Singer Futura XL 400 sewing and embroidery machine! Costumes, decor, food, props – whatever you create for Halloween is welcome in the contest. Read our contest page for details. Deadline to enter is Nov 8.
More:


I made this for one of my friends (colored pink, so I could finally make my gay Superman) for his birthday.
I’ll have to look at your video later, because mine didn’t really glow. A bit disappointing but tasty with orange oil flavoring.
How come superman didn’t collapse after eating it? I don’t think this really works.
your candy made me sick so im going to sew
if your are going to sew…i would like a new sweater
im in love with you…
your candy made me sick so im going to die.
wooooooowwww your crazy
i most die to
I almost died too****
x)
shes alive
no.. no.. shes still died im sure…
your candy made me sick so im going to die.
oh i thought i was going crazy there for 52 seconds
i thought i was for 63!!!!!!
im almost
in love with you
jk
-_- no.. dont talk to me.. i thought i was your hubby………..
you r a dude right
yes X)
were do u live im going to stalk u
jk
luv you %
jk
all of this on a kryptanite candy page i fell dumb i cant wate for some one to read this
i was just telling ethan about it X)
yapp u
jk
mmmmmhmmmm
??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
chocolate mommies
i ment monkies lol ttyl xoxoxoxoxoxoxoxoxoxoxoxoxo
i think my unicorn justtttttttttttt came…….into the room
what color is it
I have a gay unicorn hes sexy
is he gay
no he just enjoys the bum too his name is fredenjoysanal
im sure he does
hes purple
ooo yah that is sexy for sure
i know :3
NOOOOOO MY UNICORN F”ING LOVES FRED
JUNEIMMASTICKITINYABUMMMMMM
haha omg Cx
// What's Trending
Raspberry Pi Design Contest
Ten Tips for Adhesive Tape
Lost PLA Casting from 3D Prints
Seventeen Sneaky Secret Hides
I Have a (Puzzling) Dream
10 Things to Connect to Your Raspberry Pi
Teardrop Camper Trailer
47 Raspberry Pi Projects to Inspire Your Next Build
// What's Shared
A better way to slice a pumpkin
DIY Nerf Darts
100 Dollar Store Organization Ideas for Craft Rooms and Beyond
In the Maker Shed: Minty Boost USB Charger
Mad’s Mouse House
Lace Princess Crowns
I Have a (Puzzling) Dream
Play the Rings of a Tree Trunk Like a Record
// Most Commented
DIY Hacks & How To’s: Get Emergency Power from a Phone Line
Resin Casting: Going from CAD to Engineering-Grade Plastic Parts
Ten Tips for Screws and Screwdrivers
Ten Tips for Better Measurement
Is it a Hackerspace, Makerspace, TechShop, or FabLab?
Arduino Announces New Wireless Linux Board
Makers on TV: Big Brain Theory
Tool Review: BioLite CampStove
Trending Topics
Get our Newsletters
About Maker Media
Subscribe
to MAKE!
Get print and the digital version when you join!