Hearthstone Rock Candy Geodes – So That’s Where the Mana Gems come from!

Right. So, I’m giving this a 3 Skillet difficulty due to my personal experience, but if you’re already familiar with making fondant or are buying it premade, it’s more of a 2 Skillet difficulty.

Did you know Blizzard’s Hearthstone card game is celebrating its first anniversary? Hmmm? My boyfriend got me into all things Blizzard with a World of Warcraft subscription around the middle of Wrath of the Lich King and I loved it from the very beginning. My main is a Night Elf Hunter (95, and I’m very upset it’s not 100) on the Velen server. But that’s a story for another day. I usually play a few games of Hearthstone daily, at least.  It’s by far one of my current favorite games. I typically favor a Beast Mastery style Hunter deck, but my Demonology style Warlock deck has been really fun lately as well. And if Neo’s playing his evil Warrior deck – forget about it, I’m spectating those games (spoiler: God so help you if you don’t kill him in the first 5 turns).

This recipe is loosely based on someone I follow on YouTube – How To Cook That by Ann Reardon (https://www.howtocookthat.net/public_html/) . You should check her stuff out sometime; she’s absolutely brilliant. Look up Rock Candy Geode. Wow! This is my take on her fondant shelled geode. This is also my first time making and tasting fondant so it’s exceptionally exciting. Ready? Let’s go.

Gamers, Grab your mats:


  • 1 large bag mini marshmallows (16 oz.)
  • 1 large bag powdered/confectioner’s sugar (2 lb.)
  • 2 tablespoons water
  • 1 teaspoon flavoring – I used lemon, but I didn’t really taste it. Not necessarily a bad thing. I would recommend a clear vanilla extract
  • black gel food coloring
  • ground black sprinkles, optional – I didn’t have any, but I feel like adding a little of these would add a neat textured look

Geode Center:

  • 1 1/2 cups sugar
  • 1/2 cup water
  • blue food coloring, a few drops

Note: If you think for even a second that you can roll out your fondant thinner than mine and make two geodes, double the listed quantity above. I could have rolled mine thinner but I’m a coward.

You will also need:

  • blue icing – I used prepackaged vanilla icing and blue coloring but you can just as easily buy the premade blue kind
  • blue Gushers candy – apparently you can’t buy all blue Gushers. Buy the big multipack box. Trust me. The average blue yield per baggie is 1-3.
  • vegetable shortening to cover your work surface, spoon, hands… anything that might touch the fondant.
Well, I think that’s about all of it in one picture for once.

Start off by greasing your work surface liberally with shortening. You should also cover all surfaces of your wooden stirring spoon, even the handle. This feels nasty and awful and I really recommend wearing plastic gloves. Ew. Next, set about making your geode molds. If making one, get two bowls. Two geodes, four bowls. Fill bowls halfway with flour and cover with aluminum foil. Bunch this up a little as you go to get a more believable rock-like texture. I kept mine a bit smooth, as Hearthstones have always seemed mostly smooth to me.

Again, I’m a coward and only used two of these.

Pour all of your marshmallows into a large bowl (glass preferred) and sprinkle with water. Microwave on high in 30 second intervals so you can keep an eye on it. All of the marshmallows will need to be melted. It took about 3 minutes in my microwave. Again, 30 seconds at a time is ideal, otherwise your marshmallows are liable to plump up hugely and possibly even explode. No one wants to clean that up.

I swear the bowl is bigger than it looks.

Carefully remove your bowl from the microwave once all your marshmallows have melted and start mixing in your powdered sugar. Add about half your bag, stir well, and keep adding powdered sugar until your mixture is very difficult to stir. You may not need the whole bag, but you’ll likely need to use most of it. Add in your flavoring and stir.

Early in the mixing process. I really shot myself in the foot during this process.

It is absolutely critical to add plenty of powdered sugar to this. Unless you like having everything up to your wrists covered in marshmallow goo during the kneading stage and having to scream for help for 10 minutes. I mean, 10 minutes? Seriously? What if there was a robber? Geez. Yes, this really happened.

Separate your fondant mixture into two bowls. Half will be kneaded as-is, but the other half will require you to add in a tubeful of black gel food dye and stir to combine. They gray portion will be the outer shell of the geode. Mine turned out to be a pale gray-purple which seemed weird initially but turned out to be perfect.

Ye gods I suck at measuring.

Turn out your white fondant onto your work surface and knead and knead and knead. For about ten minutes. It should be solid but a little stretchy. Set aside. Repeat with the gray fondant.

I had to add a good bit of powdered sugar during this process because I hadn’t added enough before. Try to avoid having that happen or you’ll need a lot of help.

Roll each portion of fondant in a bowl, cover with shortening (as it may dry out otherwise), double bag, seal, and refrigerate for anywhere from one hour to overnight. It has had a hard night and so have you.

Once your fondant has rested, roll each portion out onto a large strip of greased parchment paper. This will need to be rather thin, even thinner than what I came up with. 1/8th of an inch is ideal. Slightly wet your gray fondant and place your white fondant on top. This can easily be done by picking up the fondant, parchment and all, and gently flip the white onto the gray. Smooth white fondant out over gray fondant.

Who sucks at measuring? Say it with me…

Cut your fondant into two portions (or four if you’ve been ambitious) and transfer to molds, gray side down. Lightly press into molds and trim with clean kitchen scissors to fit. Set aside.

Feel free to nibble on the excess. It’s tasty.

Now, for the geode. In a medium pot combine sugar and water to make a supersaturated sugar solution.

Is my phone upside down? I wonder about myself sometimes.

Heat this over medium high heat on the stove until all of the sugar has dissolved. You’ll know the sugar has dissolved if you don’t see any grit or particles in the liquid whatsoever. Remove from heat and stir in your blue coloring.

As usual: Pretty, but don’t touch.

Set all of your foodstuff aside for a moment. For each mold, tear out two large segments of aluminum foil and crimp one of the long sides together. Top that off with a dish towel or pot holder, then your geode mold. Once the sugar solution has cooled somewhat, pour this into your molds.

Good, but a bit small. Next time I would try to tear out bigger pieces of foil.

Cover your geodes with the foil and allow to set for at least 12 hours to allow the sugar center to crystallize. Unwrap and pour out any excess liquid. Turn upside down to dry.  Mix up some blue frosting and pipe a Hearthstone swirl onto the back of one of your geodes.

As usual, only needed about half of the frosting. Oi.

While that’s setting up, rip open your Gushers packets and separate the blue Gushers from the other flavors. These apparently range from 0-4 blues per baggie, with an average of 1-3. That’s why you should go for the big box. Turn the ‘plain’ geode half over to see the crystals and arrange your ‘mana gem’ Gushers in the bowl of the geode. Serve, marvel, and enjoy! You just made something ridiculously amazing!

This is probably more than 20 mana gems, but face it. You’re probably playing against a Druid with Enervate and Wild Growth. Those guys are evil.

I’ll let you figure out how to eat it. After all, that’s all part of the fun. Happy First Anniversary, Hearthstone! Blizzard, I have a kidney on reserve for you for when the Blackrock Mountain Adventure Mode is released. All hail Ragnaros! Praise him.

Next week should be the Pacman petit fours for sure.



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