Introduction: Star Wars Cake (Mustafar)

Picture of Star Wars Cake (Mustafar)

In a town far, far away. A dad decided to make a Star Wars cake for his son's birthday.

Step 1: Bake the Cake, and Make Rice Crispy Treats

Picture of Bake the Cake, and Make Rice Crispy Treats

Step 2: Cut a Hole in the Rice Crispy Treat Hill and Add a Ramekin(cup).

Picture of Cut a Hole in the Rice Crispy Treat Hill and Add a Ramekin(cup).

Step 3: Coat the Rice Crispy Hill in Chocolate.

Picture of Coat the Rice Crispy Hill in Chocolate.

Make sure you spread the chocolate to make a flat area of land. You'll see what I mean in a minute.

You will also need to pull out the ramekin before you do this step.

With a sharp knife, cut jagged pieces of "land" right at the "shoreline" of the rice crispy hill. You can heat the knife to make it cut better.

Step 4: Test Fit the Rice Crispy Hill on the Cake.

Picture of Test Fit the Rice Crispy Hill on the Cake.

My cake was a little small, so I had to slice it horizontally, and open it up like a book.

Test fit the pieces and trim to fit.

Remember where all the pieces went. Use a digital camera for this step.

Step 5: Frost the Cake.

Picture of Frost the Cake.

I used super day-glo orange for the frosting. I used an off the shelf Pilsbury brand white frosting with a liberal amount of orange food color gel.

Top the cake with the hill and the jagged pieces of "land".

I microwaved a little of the frosting for 10 seconds so it was slightly warm and pourable. I poured it around the area of the ramekin opening, and let it dribble down the side of the hill.

Step 6: Make the Sides, and Added Effects.

Picture of Make the Sides, and Added Effects.

I got the leftover chocolate and re-melted it in the microwave, I poured it over some non-stick surfaces (you can use waxpaper) into a large, flat, shape. Once cool, cut into strips the the height cake. cut the strips to match the jagged pices of land and use frosting to stick it to the cake.

Melt more chocolate and "weld" the top and side pieces together.

For the platform that R2-D2 is standing on, get a sour cream container lid, or any lid with some structural relief (little plastic ribs in the structure for interest). Lightly butter, or spray some non-stick cooking spray, inside the lids. Use these as moulds for melted white chocolate.

As an added bonus, I got some blinking lights from the cake decorating section at Walmart. These are supposed to be attached to the stems of Champagne glasses, etc. I made a couple of moulds out of a measuring spoon, and the center of an apple slicer/corer. I buttered them well and poured more white chocolate in them. Once they started cooling down I insterted the blinking lights in the white chocolate. Once completely cooled down I popped them out of the molds and used them on the cake.

Step 7: Special Effects/After Effects

Picture of Special Effects/After Effects

The ramekin, which I'm sure you have guessed by now, is for dry ice and water.

I'm sure you're kid will enjoy this.

Sniff, sniff!


LeaC21 made it! (author)2017-04-22

This came out great! My son loved it. Thank you for the great example to follow!!

Username012 (author)2016-08-31

I burned my tongue!

rachael.harger (author)2015-02-10

ok, I feel a little silly asking this as I was looking through the comments as no one else asked that I could see so it's obviously an obvious answer. I get that you melted chocolate, but what type of chocolate did you use? Btw, thank you for taking the time to post this tutorial :)

That's funny. I could have sworn that info was in there somewhere but after a quick search I see that it isn't. I think it was just the regular melting chocolate that look like discs, but any melting chocolate that hardens back up when cool will do.

indywave (author)2013-08-09

I want one

SuzukiDHP (author)2013-06-12

awesome! I love Star Wars

sircaptaintigerotter (author)2012-03-22

nice suit vader ....*puts on sun glasses*...... must have cost u an arm and a leg

youwiththeface (author)2011-05-24

I'm pretty sure the picture is what used to be a cake. But I'm just guessing here.

kurt_shetler (author)2011-02-28

I went with a Lego Ninjago theme, but same cake. Thanks for the instructions!! it was a big hit.

kurt_shetler (author)2011-02-28

Loved this idea. I used it for a Lego Ninjago design. My son wanted a Lego cake, and I saw this and thought it'd be perfect.

michellepunkin (author)2010-11-06

I am going to try to make this cake, so I am not sure if I am happy you posted it very ticked bc I did not read the instructions before today, and I am making the cake for my son's b-day!!! I am not creative, but he fell in love with the idea, wish me luck!

You'll do fine! Besides this site is all about inspiration. There is no need to duplicate, or try to duplicate, someone's efforts 100%. Just do it and have fun with it.

Check out all the other images and comments below from others who have opted to make this cake. Every one of them is unique, and they all came out will yours.

Megs1977 (author)2010-08-14

Here's mine. I love this cake, thanks a bunch!!

CementTruck (author)Megs19772010-08-14

Awesome! It's so cool that this instructable has had some longevity.

Megs1977 (author)CementTruck2010-08-14

Star Wars will never cease to be cool.

Megs1977 (author)2010-08-14

I would just like to say, you need a lot of chocolate for this step. Or I did it wrong :)

CementTruck (author)Megs19772010-08-14

Do or do not....there is no "wrong"! - Yoda ;) The Rice Crispy hill is coated in the melted chocolate, so there really isn't that much there. The rest of the cake (if I remember right) only had 1/4" thick chocolate layer. meh - who doesn't like chocolate? Right? Enjoy!

Megs1977 (author)CementTruck2010-08-14

I ended up using 4 7oz tubs of the chocolate. But I made a double cake. Man my kids loved it. What an awesome cake. And, I couldn't find a R2D2 so Yoda was on the ramekin :)

mrninja (author)2010-05-12

What happened to the ca..........Noooooooooooooooo!!! =P

gattirenata (author)2010-03-18

OMG!!! this is so super duper awesome!!! you are a super dad in my book!!!

slee2 (author)2009-09-01

I am going to make your cake for my grandson, can't thank you enough for sharing this. I need the lights you used, I will go to Walmart cake section for them. What do I ask for? Are they used just for cakes or for other decorating idea. I think that was such a great idea you had. Thanks again, Grandma Sandy

CementTruck (author)slee22009-09-01

Try checking the area of Walmart where they have all the champagne glasses and cake cutters (wedding cake stuff). These lights come in packages of two and are meant to be attached to the stems of champagne goblets. If you can't find them you can also try

slee2 (author)CementTruck2009-09-01

Thanks so much for both suggestions! Interesting site and so if I can't find them perhaps my son wil help me make some. Again, thanks for sharing and taking the time to reply.

paulzak17 (author)2009-05-18

did you melt the chocolate over the stove or in the microwave or does it really matter which way you do it?

hlchristy (author)2009-02-13

Okay, I think I figured out how to post to this site. The first photo is of my R2D2s. I'm going to post my own instructable for those. The second is of my cake before I put on the guys and platforms. The third picture is a close-up the guys and platforms. (I know the dry ice can be seen, which I would have corrected if I hadn't run out of time. I kept having trouble making the platforms. Finally, I figured out that if I slit with a knife the edges of the mold before pouring the almond bark, that I could remove the platforms without breaking them.) My advice: Make sure to put enough water in for the dry ice to work well. I used a Red Velvet cake mix for another layer of red. I used chocolate-covered pretzel sticks to hold up the platform. I also used a bit of gel icing to create another 'level' of lava. I didn't leave enough room at the edge of the volcano for Obi Wan to stand, so he had to go up to the really high ground (movie inaccuracy). Thanks again!

MamaGG (author)hlchristy2009-05-15

can you post the instructions for R2D2? My son wants Star Wars theme for his 7th birthday party next Saturday. Thank-you!

CementTruck (author)hlchristy2009-02-13

I like the gel icing idea to give the lava some dimension. Slitting the mold for the platforms before hand is also a good idea. Kudos.

Tasha Bush (author)2009-05-06

Hi are rice crispy treats same as kids breakfast cereal rice bubbles (australian) and how did you make it shaped like that (what did you mix it with). Thanks nat

bounty1012 (author)2009-04-14

XD you cant use the clone wars versions!!!

Trikster (author)2009-03-13

Had to give the Star Wars cake a try for my son's 7th Birthday! we had soo much fun putting it together! its almost a shame that tomorrow we will have to eat it!!

hlchristy (author)2009-02-14

Here is the link for the R2D2s. I'll be putting up step-by-step photos soon.

hlchristy (author)2009-02-13

Third try for photos.

CementTruck (author)hlchristy2009-02-13

When you finally get your R2-D2 instructable posted make a link-back to this instructable so it gives other SW fans more ideas (cynergy) ;)

hlchristy (author)2009-02-13

Thank you so much for the idea. Although my version needed some work, (I had the wrong versions of the characters), the cake was a success. I also came up with an idea to make R2D2s from Twinkies and wafer cookies!

Jamburger (author)2009-01-14


criggo (author)2008-12-05

Thanks again for sharing! I was totally inspired and made one for my twins b-day party tomorrow. They just love Star Wars! I am SO NOT a creative person or baker so we'll see what the kids and parents have to say tomorrow. Anyway, I modified the approach a bit since I didn't have time to make rice krispie treats. I just used regular old Betty Crocker cake out of the box and made it a layer cake. I cut off the tops of ice cream cones to make volcanos. Also, I crushed some graham crackers to make a more lava-rocky texture. Finally for the floating lava pieces, I broke up pieces of Crunch chocolate bar. Here's my version.

teamcoltra (author)criggo2009-01-14

God, I need to stay out of the food section, that cake looks delicious (as does the one in the instructable). I think crubmled chocolate sould work great for the dirt effect too... :)

Jamburger (author)2009-01-13

What is the material you have laid out there? You used to form rice krispy treats and cool chocolate on?

CementTruck (author)Jamburger2009-01-14

The material is called Silpat. It is fiberglass coated in high temp silicone, and is used as a cookie sheet, or baking sheet. It is non stick. You can just as easily use wax paper. I (my wife, actually) already own these, and I used the materials I had available to me.

grlegrl27 (author)2008-12-03

I'm planning on making this cake this weekend, but have a question: when frosting the rice crispies and extending it out, do you just cool the frosting in the fridge in order to get it to come out in pieces? Just need some clarity... Thanks!

CementTruck (author)grlegrl272008-12-03

You can do that to make it cool really quickly, but allowing it to cool at room temp is OK too. In fact, letting it cool at a slower rate allows you to smear the chocolate around a little longer until you get the crusty effects you want. If you make a mistake you can always snap the chocolate off the edge of the rice crispies, warm it back up in the microwave and try it again. It really is a very forgiving medium. Cheers.

georgia88 (author)2008-11-03

is this a 13" x 9" or a 15" x 10" cake??????

CementTruck (author)georgia882008-11-03

13 x 9, but I sliced it in half as you would normally do to layer a cake. I then opened the cake up like a book, with the top on one side, and the bottom on the other (somewhat like a sheet cake). The important part was the decoration, rather than the cake size. Use what cake pans you have. No need to buy anything special.

roubadg (author)2008-10-24

I made this cake twice already and it has been a major hit both times... I came back today to see if you had a halloween cake :) I guess I will have to do this one on my own... I really really love this cake though, thanks for sharing it...

CementTruck (author)roubadg2008-10-25

Sorry roubadg. I have made several other theme cakes since this one, but nothing post worthy. I made a Halloween themed cake a couple of years ago. I made 2 bundt cakes, flipped one over so it looked like the bottom of a pumpkin, then frosted the flat half and stuck the second one on to to complete the pumpkin look. Bundt pans have ridged sides like a real pumpkin so it lent itself well to the theme. I decorated with orange and green frosting. It came out pretty cool.

Deanna007 (author)2008-10-20

Thx 4 the idea! It was a big hit! My son said it was awesome!. I skipped the dry ice and the whole step in the white chocolate. I concentrated on the volcano. I also use 2 9 x 13 cakes instead of cutting one in half. Anakin is standing on the Devils food cake (the dark side) and Obi-won was standing on the white cake (The light side) The guest thought that was a cute idea.Also for the Organge frosting I use food coloring and the color spray in orange. Here is my result!

CementTruck (author)Deanna0072008-10-20

Ha ha! I like the whole dark side/light side cake juxtaposition. He looks happy!

Deanna007 (author)CementTruck2008-10-20

I thought you would like that!!

hometree (author)2008-10-19

the creativity is incredible, thanx for sharing! Even with some issues getting the correct figures to top it (we lost R2-D2s head and used Luke instead of Anakin), the kids still were in awe and full of excitement to see it, especially when the steam was in effect!

taradanley (author)2008-09-28

Thanks so much for boyfriends son first asked, "where did you buy that!!!" then he said are those figurines mine?" It was a hit...I couldn't do the special effect or the platform due to time constraints. The step by step was fabulous...GREAT CAKE! heres mine...

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Bio: "Better to have it and not need it than to need it and not have it."
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