Tuesday, September 26, 2023
It's Sweet to Share!

Create a Realistic and Unbelievable Sushi Birthday Cake that is 100% Edible

It's Sweet to Share!

Gabriel’s favorite thing to eat is sushi, so for his birthday, I decided to make him a sushi birthday cake. A California Roll Sushi Birthday Cake, to be exact. 

Since I’m more of a traditionalist and I don’t use fondant very often, I called on my friend Linda who is incredible with fondant. She also just happens to be the Portlandia Pie Lady and makes incredible pies! She’s just all around super talented. 

See that detail on the chopsticks? She hand painted them. They are edible too! In fact, everything on this cake is edible, even the wasabi! 

Create a Realistic and Unbelievable Sushi Birthday Cake That is 100% Edible

I made and frosted the cake at home, and I transported it to Linda’s house to transform it into a giant sushi roll filled with crab, carrots, avocado and rice! 

Sushi Birthday Cake 

This realistic sushi birthday cake is 100% edible – even the chopsticks! Transform a regular cake into sushi following these easy instructions.

Create a Realistic and Unbelievable Sushi Birthday Cake That is 100% Edible

Sushi Birthday Cake

Catherine Olson
Prep Time 4 hours
Cook Time 30 minutes
Course Dessert
Cuisine Japanese
Servings 8 slices


  • Kitchen Aid Meat Grinder
  • Fondant
  • Wooden Skewers
  • Food Coloring



  • 1 cup softened butter
  • ½ cup oil
  • 1 cup white sugar
  • ½ cup brown sugar
  • 4 egg yolks
  • 1 ½ cups Mountain Dew Soda
  • 3 cups flour
  • 1 cup buttermilk
  • 1 teaspoon salt
  • 2 teaspoons baking soda
  • 4 egg whites


  • 16 oz. cream cheese
  • 2 sticks butter
  • 16 oz. package of powdered sugar
  • Juice half a lemon
  • ¼ cup of milk or heavy cream



  • Preheat oven to Fahrenheit 350°
  • Cream butters and sugars until smooth
  • Add 4 egg yolks, one at a time mixing well after each addition
  • Add 1 ½ cups Mountain Dew and beat in with mixer
  • Add flour, buttermilk, salt, and baking soda
  • Mix until well incorporated
  • Set aside
  • In a separate bowl, whip 4 egg whites to stiff peaks
  • Fold into batter
  • Pour into two 9” prepared pans
  • Bake at Fahrenheit 350° for 25-30, or until cake springs back at the touch
  • Invert cakes on wire rack, let cool for a minimum of 3 hours
  • When cooled, spread frosting in between layers and a light crumb coat on the exterior
  • See post for applying Sushi Birthday Cake decorations and fondant


  • Mix all ingredients together until smooth and spreadable
Keyword Sushi Birthday Cake

Create Sushi from Regular Birthday Cake

To transform this plain cake into a sushi birthday cake start by cutting out a hole straight through the center of the cake, at least 3” across. 

Fondant Coating

Cover the cake in white satin fondant and smooth around the entire exterior and in the middle of the hole you created. 


Take a large section of fondant and color it black for the seaweed. Roll it into one long piece, and texture it with a long wooden skewer. Cut a straight edge and line that up with the top of the cake, and then roll it around the sides of the cake and trim the bottom. 

Create a Realistic and Unbelievable Sushi Birthday Cake That is 100% Edible

Use the meat grinder attachment on a kitchen aid to create rice! Fill the top of the cake with pieces of the rice fondant until it is full. 

Vegetables & Crab

Color sections of fondant to create different shades of green and orange for wasabi, carrots, crab, avocado and chopsticks. Shape into individual ingredients and place inside the whole you created in the center of the cake. 

Secret Birthday Plans 

Of course this Sushi Birthday Cake was all kept secret from Gabriel and it was well worth it. His reaction was priceless!

Create a Realistic and Unbelievable Sushi Birthday Cake That is 100% Edible

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Make Your Own Sushi Birthday Cake

If you make a comically large sushi birthday cake, be sure and tag @Fahrenheit350sweets on Instagram so I can see it! And I’d love it if you left a review and a comment below! 

Create a Realistic and Unbelievable Sushi Birthday Cake That is 100% Edible

More Birthday Cake Recipes to Bake at Fahrenheit 350°!


It's Sweet to Share!


  1. That cake is GREAT! Your friend has incredible talent and you’re right – she should totally start her own blog/website/something. Good for you two!

  2. That is fantastic. Happy Birthday Gabe! I need your help Kitty. I am not doing a carnival for Millie’s b-day anymore it was being to stressful for this time in my life so instead, I am giving her a pinkalicious party. Hence where you come in: I need some ideas for pink foods that are 4-7 year old appropriate. I looked up pink foods and all the ideas were like salmon rolls and stuff. Millie loves salmon I don;t think her little friends want thtat at a b-day party however. Do you have any ideas?

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