Obi-Wan and Anakin Mustafar Cake Inspired by Star Wars: Revenge of the Sith

It’s week 3 of my Star Wars baking challenge as I prepare to see Star Wars: The Rise of Skywalker with a Star Wars movie marathon! Each week I’m baking a treat inspired by one of the Star Wars episodes — find them all here.

This week, I’m taking on a cake inspired by my favorite movie from the prequel trilogy — Revenge of the Sith.

While this is one of my favorite Star Wars films, it still hurts to watch the final scene between Obi-Wan and Anakin on Mustafar.

“Only a Sith deals in absolutes.” — Obi-Wan

And then the battle of the heroes begins…

“Its over, Anakin. I have the high ground.” –Obi-Wan

“You underestimate my power.” –Anakin

“Don’t try it.” — Obi-Wan

…and the rest is Star Wars history with the demise of Anakin Skywalker.

Star Wars Baking Challenge — Week 3, Revenge of the Sith

To capture the weight of this conflicting scene, I decided to create a three-tired cake resembling the rocky surfaces and lava rivers of Mustfar, complete with Anakin and Obi-Wan action figures. Aka my “I’ve got the high ground” cake.

I made edible red and orange candy rocks to place on the cake for lava and I iced the cake’s surface with a rough pattern to serve as the rocky surface.

*cue John Williams’ Battle of the Heroes soundtrack*

Mustafar Cake Inspired by Star Wars: Episode III — Revenge of the Sith

What You Need:


  • Three 6-inch circular cakes


  • 4 sticks of salted butter, room temperature
  • 2 lbs. of powder sugar (1 bag), sifted
  • 2 tsp. of vanilla extract
  • 3-5 tbsp. milk
  • Food gel coloring — black


  • Food gel coloring — red, orange
  • 4 tablespoons corn syrup
  • 2 cups of sugar
  • Cupcake pan
  • Parchment paper
  • Small pot
  • Wooden spoon
  • Cooking spray


  • Icing tip — round
  • Icing coupler
  • Icing bag
  • Angled spatula
  • Serrated knife
  • Obi-Wan and Anakin action figures

Creating Edible Rock Candy for the Mustafar Lava

Let’s start with your edible lava rocks.

If you’ve never melted down sugar before, I would recommend that you watch my tutorial on how to melt sugar down from my Avengers Infinity Stone Cupcake recipe. You see, the second you turn the heat off and add your food coloring, the mixture starts to cool — fast. So make sure you’ve read the instructions below or have watched the tutorial, and then you’ll be ready to go!

Before you begin melting down your sugar and corn syrup, let me take a moment to warn you to be careful! Melted sugar is very hot, so be sure to use caution.

In a small pot, mix together 1 cup of sugar and two tablespoons of corn syrup. Turn your stove on to medium-high heat. Stir the sugar mixture continuously with a wooden spoon. As the sugar begins to break down, you’ll notice the mixture begins to get “wet.” Continue stirring to help the mixture melt evenly and to prevent it from burning.

Once your sugar mixture is melted and begins to boil, cover it with a lid and let it boil further for a minute or so. Once your mixture reaches a light brown/light caramel color, remove the pot from the heat, continuing to stir the mixture. Quickly add red food coloring or gel to the mixture, stirring well. Then, working quickly and carefully, pour a small amount of your melted red sugar into a cupcake pan lined with parchment paper.

Let your sugar mixture cool and harden for about 30 minutes. Then, remove the pieces from the cupcake pan, place them in a ziplock bag, and crush them into small pieces with a hammer.

Repeat the sugar melting process to create orange candies.

Baking and Decorating Your Cake

Prepare and bake three 6-inch circular cakes (you choose the flavor!).

CAKE BAKING TIPS: Grease your cake pans and then sprinkle flour all over the surface. Next, cut out a circular piece of parchment paper and lay it on the base of the pan before pouring the batter into the pans. These steps will help your cakes slide right out of the pan once they cool.

Once your cakes are out of the oven, set them aside to cool. Then, using a serrated knife, level off the top of the cake, if needed.

Before you begin to ice your cooled cakes, place several small pieces of parchment paper on your cake stand or cake plate or stand and then place your first cake on top. By doing this, you will help to keep your cake plate clean and free of extra icing while you work.

Next, it’s time to prepare your buttercream icing.

Using a stand or hand mixer, beat your softened butter, vanilla, and a tablespoon or so of milk until blended and smooth. (I let my stand mixer go for several minutes until the butter mixture is creamy). Slowly add your sifted powdered sugar, a few cups at a time, until all of it is incorporated. Next, add one tablespoon of milk at a time, if needed, until you reach your desired frosting consistency. Taste test to be sure it’s perfect! Then, add black food coloring until your icing reaches your desired hue.

Using a large round icing tip (or just an icing bag with the tip cut out!), add a generous amount of icing to the top of your first cake. Then, using your angled spatula, smooth the icing out across the top of the first cake.

Once your icing is smooth and even, place your second cake on top. Repeat the process, adding a layer of icing to the top of the second cake. Spread the icing across the top of the second cake with your angled spatula and spread the excess icing over the edge of the cake. Repeat process for your third cake, smoothing the top icing layer.

Next, cut out a triangle-shaped piece of cake where you would like your lava to be.

Remove the excess cake and then ice the “crater” with buttercream. Then, using your angled spatula, smooth the icing around the edge of your cake to form a “crumb coat,” adding extra icing as needed.

Once your cake is completely iced, stick your it into the refrigerator for 20 minutes or so to chill.

Once your cake has chilled, remove it from the refrigerator and use your angled spatula to add additional buttercream to form a “rough”, textured icing layer on top to resemble the rock-like surface of Mustafar.

Within the iced crater of your cake, place miscellaneous rock candy pieces on the icing to form your lava. For my cake, I placed the red rocks in the center an the orange rocks around the edge. Fill in the crater entirely so no black icing is showing, then for an added touch, brush on some red food coloring to the candy rocks in the center of your crater to give them an extra glistening vibe.

Since my cake was placed on a cardboard cake board, I then used my extra icing to cover the edge of my board with more “rocks.”

Place your Obi-Wan action figure on the “high ground.”

Place Anakin at the base of the cake on the opposite side of the lava.

Did you miss my previous recipes for my Star Wars baking challenge? Here you can find my Queen Amidala cake inspired by her iconic red dress from The Phantom Menace and my Anakin and Padme pie inspired by their wedding on Naboo from The Attack of the Clones.



  1. November 18, 2019 / 7:13 pm

    This is one of my favorite Star Wars battles of all time.

  2. December 1, 2019 / 3:56 pm

    This is the most amazing thing I’ve seen in my entire life. Genuinely.

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