Easy DIY Sushi Cake: A Fun & Foolproof Dessert for Birthdays and Beyond
Prepare to amaze your friends and family with this incredibly fun and deceptively realistic **homemade sushi cake**! While I might not be a huge fan of traditional sushi, this sweet rendition is an absolute game-changer. It perfectly mimics the look of a classic sushi roll but delights with the sweet flavors of pound cake, rich frosting, and colorful candies. Whether you’re planning a unique birthday celebration, an unforgettable April Fool’s Day prank dessert, or simply want to try a creative cake project, this sushi cake tutorial is for you. It’s just as enjoyable to create as these other Birthday Cake Ideas or this charming Bumblebee Cake (Spring Cake), promising a delightful surprise for everyone who takes a bite.

Crafting Your Sweet Sushi Cake from Scratch: A Step-by-Step Guide
Creating this eye-catching dessert is a straightforward process, combining simple baking with creative decorating. Here’s a breakdown of the essential steps to make your own delicious sushi cake:
- Bake Your Cake: Start by baking a sturdy pound cake. A firm cake is crucial for holding its shape and supporting the decorations. Ensure it cools completely before proceeding – patience is key here!
- Cut Perfect Circles: Once your cake is thoroughly cooled (and ideally chilled), use a sharp circle cutter to create individual “sushi” pieces. Precision here makes all the difference in achieving that authentic sushi look.
- Ice the Sides: Apply a layer of delicious chocolate frosting around the sides of each cake circle. This not only adds flavor but also helps the fondant “seaweed” adhere perfectly.
- Wrap with Fondant: Roll out a strip of green or black fondant and carefully wrap it around the frosted sides of each mini cake. This step transforms your cake slices into realistic sushi rolls.
- Add Colorful Toppings: Get creative with your “fillings”! Sprinkle shredded coconut and crushed candies on top to mimic fish roe or various sushi ingredients.
- Serve and Enjoy: Arrange your beautiful sushi cakes on a tray, perhaps with a pair of chopsticks for added effect, and watch as your guests are delightfully fooled and then impressed!
Creative Variations for Your Fondant Sushi Birthday Cake
The beauty of this sushi cake recipe lies in its versatility. You can easily customize it to suit your taste preferences or the specific theme of your event. Here are some exciting variations to inspire your next creation:
- Experiment with Fondant Colors: While I opted for a dark green fondant to resemble traditional nori (seaweed), you can easily substitute it with black fondant for an equally authentic look. Both options create a striking contrast against the lighter cake and vibrant toppings. Consider other colors too, if you’re going for a whimsical or fantasy sushi theme!
- Diverse Candy Toppings: Instead of classic candy corns, which provide a lovely orange and yellow hue, explore other small, colorful candies. Crushed gummy candies, small jelly beans, sprinkles, or even finely chopped fruit snacks can mimic various sushi ingredients like fish roe (tobiko or masago), avocado slices, or spicy tuna. Think about textures and colors to create different “sushi” types.
- Scale Up to a Large Cake: This tutorial is perfect for mini sushi cakes, but you can easily adapt the concept to create a single, larger 8 or 9-inch sushi cake. Simply bake a larger pound cake, then apply the same frosting and fondant techniques to the entire cake before adding your desired toppings. This makes for a grander centerpiece at a party.
- Explore Different Cake Flavors: Don’t limit yourself to just one type of pound cake! This recipe works wonderfully with various sturdy cake bases. Try a rich Chocolate Pound Cake (With Cake Mix) for a darker “rice” base, or a bright Lemon Pound Cake (With Cake Mix) for a zesty twist. A classic Buttermilk Pound Cake (From Scratch) or Sour Cream Pound Cake will also provide the necessary density and deliciousness.
- Mix and Match Frosting Flavors: The chocolate buttercream is fantastic, but feel free to get adventurous with your frosting choices. A creamy Peanut Butter Frosting could add a unique nutty flavor, or an Easy Maple Frosting would offer a warm, comforting sweetness. Ensure your chosen frosting is firm enough to hold the fondant and toppings.

Expert Tips and Techniques for Perfect Sushi Cakes
Achieving a professional-looking and delicious sushi cake is all about paying attention to a few key details. Here are my top tips and techniques to ensure your dessert turns out perfectly:
- Choose a Firm Cake: This is arguably the most critical tip. Whatever cake recipe you decide on, it must have a firm, dense texture. This sturdiness is essential for the cake to maintain its perfectly round shape when cut and to support the weight of the fondant and various decorations without crumbling or collapsing. Pound cakes are highly recommended for this very reason due to their inherent density. Consider a cream cheese pound cake for added moisture and flavor.
- Decorate with Cool Cakes Only: Resist the urge to decorate warm or even slightly warm cakes. Warmth will cause your icing to melt, smudge, and create a sticky, unmanageable mess. Always ensure your cake is completely cool, preferably chilled in the refrigerator for at least an hour or even overnight, before you begin any frosting or fondant work. A firm, cold cake is much easier to handle and cut cleanly.
- Opt for Metal Cutters: For the sharpest, cleanest, and most precise circular cake slices, always use metal circle cutters. Plastic cutters tend to press and tear the cake, leading to uneven edges, which detracts from the realistic sushi appearance. Metal cutters slice through smoothly, giving you beautifully defined rounds.
- Homemade vs. Marshmallow Fondant: You have options when it comes to fondant. Both homemade fondant and marshmallow fondant can be used successfully. I personally lean towards homemade fondant because it often has a superior taste and a delightful aroma that marshmallow fondant might lack. However, marshmallow fondant is generally easier to work with for beginners. Another fantastic shortcut is to buy pre-colored fondant (especially in dark green or black) to save yourself the hassle of mixing and kneading colors. For an even quicker alternative, consider using green fruit roll-up strips instead of fondant; they’re already thin, flexible, and perfectly colored for a “seaweed” effect!
- Achieve Smooth Frosting: When icing the sides of your mini cakes with chocolate buttercream, use a small offset spatula or a butter knife. Aim for an even, thin layer that completely covers the sides. This smooth base is essential for the fondant to adhere without bumps or air pockets.
- Fondant Application: Roll your chosen fondant thin but not so thin that it tears easily. Use a light dusting of cornstarch or powdered sugar on your work surface to prevent sticking. When wrapping the strips around the cake, press gently to secure, ensuring there are no gaps. Trim any excess with a sharp knife or pizza cutter for neat edges.
- Topping Techniques: For the shredded coconut, gently press it onto the iced top of the cake. For crushed candies like candy corn, use a small spoon to carefully sprinkle them in the center, mimicking the look of fish roe or a colorful filling. Don’t be afraid to experiment with arrangement for visual appeal.
- Presentation Matters: Serve your sushi cakes on a clean white tray, similar to how real sushi would be presented. Including chopsticks or small serving tongs can enhance the playful illusion and encourage guests to admire your creative dessert.
Storage Solutions for Your Sushi Cake
Proper storage ensures your delightful sushi cake remains fresh and delicious for as long as possible:
- Refrigeration: Leftover decorated sushi cakes can be stored in a sealed airtight container in the refrigerator for up to 3 days. Be aware that fondant decorations might become slightly sticky or tacky due to the moisture in the fridge. This is normal and doesn’t affect the taste.
- Freezing (Unfrosted Cake): If you want to prepare parts of this dessert in advance, unfrosted pound cake loaves or individual cake rounds can be stored in a sealed, freezer-safe container or wrapped tightly in plastic wrap and then foil for up to 1 month. When you’re ready to decorate, simply let the cake thaw in the refrigerator overnight before proceeding with the icing and fondant steps.
- Make-Ahead Instructions: For maximum convenience, you can bake and fully decorate this sushi cake one day in advance. Store the finished cakes at room temperature in an airtight container if your environment is cool and dry. If it’s warm or humid, refrigerate as per the instructions above, allowing them to come to room temperature for about 30 minutes before serving for optimal flavor and texture.

More Fantastically Decorated Cakes to Explore
If you loved creating this sushi cake, you’ll surely enjoy these other wonderfully decorated cake ideas that are just as fun and impressive:
- Watermelon Cake
- Butterfly Cake
- Tie Dye Shirt Cake
- Fondant Flower Cake
- Peacock Cake
- Crying Baby Cake
- Modern Abstract Cake
Recipe

Easy Birthday Sushi Cake
Abeer Rizvi
Pin Recipe
Want to Save This Recipe?
Enter your email & I’ll send it to your inbox. Plus, get great new recipes from me every week!
By submitting this form, you consent to receive emails from CakeWhiz
Ingredients
- Cream cheese pound cake
- Chocolate buttercream frosting
- 2 cups Marshmallow fondant Dark green or black
- ½ cup Shredded coconut Sweetened
- ¼ cup Candy corn Roughly chopped
Instructions
-
Bake a loaf of pound cake.
-
Allow it to cool completely. It’s better to chill in fridge overnight to really make it firm.
-
Cut it in half lengthwise.
-
Use a small 2 inch circle cutter to out circle cake pieces.
-
Ice the sides of these mini cakes with chocolate buttercream, using a spatula.
-
Roll out green fondant (or black fondant) and cut strips using a pizza cutter. The width of these strips should be the same as the height of the mini cakes.
-
Wrap these fondant strips around your circular cakes and cut off excess along the sides.
-
Tip:I have seen some sushi cakes that use green fruit roll up strips instead of fondant. I think that’s very smart. It would save you the hassle of rolling fondant and cutting strips.
-
Cover the top of your cakes with icing.
-
Sprinkle shredded coconut on top.
-
Sprinkle crushed candy canes in the center.
-
Line these cakes on a tray and enjoy!
Notes
- Read all my tips above.
- Leftovers can be stored in a sealed container in the fridge for up to 3 days.
Nutrition
An automated tool is used to calculate the nutritional information. As such, I cannot guarantee the accuracy of the nutritional information provided for any recipe on this site.