I recently obtained some citric acid. I originally bought it for making effervescent energy drink tablets, but I was looking to expand into other areas. I was putzing around my kitchen when the lightbulb went on - some sort of pop rocks type candy. I thought, "how hard can they be to make?" so I began experimenting. this did not end well, however - but I will include some tips at the end that I think could turn this into a viable method for creating DIY carbonated candies.
Step 1: Gather ingredients
kool-aid (or some other flavoring)
as for the hardware:
Step 2: Make Candy Base
1.25 cups sugar
.5 cups corn syrup
1/3 cup water
in a saucepan, put it on medium heat until it boils, then leave it to boil until it reaches 300 F. I actually added my flavoring here too (dumb - must read more carefully), so mine ended up all burnt tasting. fun. for this particular iteration, you'll want to add
1.25 tsp citric acid
to the mix.
Step 3: Wait.
while you're waiting, take time to prep the landing spot for your... whatever it turns out to be. it's pretty simple, I just lined a pan with parchment paper.
Step 4: Add flavoring and baking soda
wait: first, put in 1/4 tsp kool aid (or whatever flavoring you're using).
alright, remember those old records where the record would tell you when to turn the page in the book? this is going to be a bit like that, but you're going to want to advance the photos on the cue.
view first photo.
here we go, adding the baking soda. just a little tap.
view second photo.
ooh, already fizzing a bit.
view third photo.
man, fizzing a lot. hope this doesn't go bad...
view fourth photo.
please stop expanding.
view fifth photo.
crap, it's leaving the container. crap crap crap crap
view sixth photo.
well that went exactly the opposite of how I had planned.
Step 5: Make the best of it
just pour it onto the parchment paper and put it in the freezer. that's really it. when it's out, break or cut it (whichever you can manage) into edible pieces.
you may have noticed that my stuff turned orange. this is because the flavoring burnt - I should've added it at the end.
actually, what I came up with was kind of interesting - it formed a sort of chemically-pulled taffy, which could be nice for someone who wants to make taffy but doesn't want to do the sticky manual labor. but that wasn't what I was going for.
Step 6: How to improve it
first, add the flavoring at the end, not the beginning. you'll burn the flavoring like I did and it will taste nasty.
second, wait a long time to add the baking soda. like, put it in a pan, let it cool until it's warm to the touch and workable, then knead in the baking soda. the acid and the baking soda will have a much slower interaction, allowing it to cool before they react.
I'm going to try this method later, but I don't have time to do it again right now. I'll revisit this, I promise!