If you’re looking to create a charming, perfectly-sized cake that feels both special and personal, this Bento Cake Recipe 5″ Vanilla Sponge Recipe is exactly what you need. It’s a delightful, fluffy vanilla sponge cake made with simple, wholesome ingredients, designed to fit perfectly in a 5-inch tin. Whether you’re celebrating a little occasion or simply craving something sweet, this recipe delivers a soft, tender crumb with just the right amount of vanilla flavor, making it an all-time favorite you’ll want to bake again and again.

Ingredients You’ll Need

Two round cake layers with a light golden brown color sit on a silver cooling rack above a white marbled surface. Both layers have a soft, fine texture with slightly uneven edges, showing a moist crumb. One layer is closer to the front, slightly larger and darker in shade, while the other is positioned behind it and is lighter. Small crumbs are scattered around the rack. Photo taken with an iphone --ar 4:5 --v 7

To make this Bento Cake Recipe 5″ Vanilla Sponge Recipe stand out, you only need a handful of basic ingredients. Each one plays an important role: from the fluffy texture that flour creates to the rich buttery flavor that makes this cake so indulgent.

  • 100 g flora buttery/margarine: Brings richness and moisture to ensure the sponge is tender and soft.
  • 100 g caster sugar: Helps give the cake a light sweetness and assists in creating a fine crumb.
  • 1/2 tsp vanilla extract: Adds a warm, comforting vanilla aroma that is essential for flavor depth.
  • 2 large eggs: Bind the ingredients together and provide structure so the sponge rises beautifully.
  • 100 g self-raising flour: Contains leavening agents to help the sponge rise light and fluffy.
TIP

You’ll find the full ingredient list, instructions, and print option in the recipe card below.

How to Make Bento Cake Recipe 5″ Vanilla Sponge Recipe

Step 1: Preheat and Prepare Your Tins

First, set your oven to 160°C for a fan oven or 180°C if you’re using a traditional oven, gas mark 4. While waiting for heat, grease two 5-inch cake tins with butter and sprinkle with flour to prevent sticking. If you prefer, using greaseproof paper works just as well for an easy release after baking.

Step 2: Cream Butter and Sugar

Place your softened flora buttery or margarine into a bowl along with caster sugar. Use a hand mixer to cream them together until the mixture becomes lighter in color and fluffy in texture. This is where your cake’s light crumb starts forming, so taking a moment here really pays off.

Step 3: Add Eggs and Vanilla

Slowly add your eggs one at a time into the creamed butter and sugar, mixing gently after each addition. Stir in the vanilla extract to bring that comforting flavor. If the mix begins to curdle, don’t panic—add a spoonful of flour to bring it back together smoothly.

Step 4: Fold in the Flour

Gently fold your self-raising flour into the mixture, being careful not to overmix. Scrape down the sides of your bowl to ensure everything is combined evenly. This gentle folding preserves the air bubbles you’ve just created, which will keep your sponge light and fluffy.

Step 5: Divide Batter and Bake

Use a kitchen scale to divide the batter equally between your two prepared tins—this helps both layers cook evenly. Make a small dip in the center of the batter in each tin to prevent doming as it bakes. Pop the tins into your preheated oven and bake for about 25 minutes. You’ll know it’s done when a skewer inserted into the center comes out clean.

Step 6: Cool and Prepare to Decorate

Once baked, leave your cakes in the tins for about 10 minutes to set before turning them out onto a cooling rack. When fully cooled, wrap them in cling film to keep moist until you’re ready to level and assemble.

How to Serve Bento Cake Recipe 5″ Vanilla Sponge Recipe

The image shows a close-up of a round cake being spread with a smooth, light beige frosting. The cake has two visible layers, with the frosting being spread evenly on the top layer using a metal spatula held by a woman's hand. The cake sits on a white plate placed on a white marbled surface. The frosting has a creamy texture with some small air holes visible, and the spatula is partially covered with the frosting. photo taken with an iphone --ar 4:5 --v 7

Garnishes

Because the vanilla sponge is so perfectly light, simple garnishes can elevate your cake without overwhelming it. Fresh berries, a dusting of powdered sugar, or a few edible flowers add a pop of color and freshness that complements the softness beautifully.

Side Dishes

Consider serving this vanilla sponge alongside a dollop of whipped cream or a scoop of vanilla bean ice cream for a classic pairing. A drizzle of berry coulis or chocolate sauce can also add an indulgent twist.

Creative Ways to Present

For a fun bento-style presentation, place the cake slice alongside small portions of fruit, nuts, or mini cupcakes in a neat, colorful box. Layering different spreads or fillings between the sponge layers before serving can also create delightful flavor surprises.

Make Ahead and Storage

Storing Leftovers

Wrap your leftover vanilla sponge tightly with cling film and store it in an airtight container at room temperature to keep it soft for 2 to 3 days. Avoid refrigeration as it can dry out the sponge.

Freezing

This Bento Cake Recipe 5″ Vanilla Sponge Recipe freezes wonderfully. Wrap the cooled sponge layers separately in cling film and place them in a freezer-safe bag or container. They can be frozen for up to 2 months and thawed overnight in the fridge before use.

Reheating

If you want to enjoy a warm slice, pop the cake in a microwave for about 10 to 15 seconds or gently warm in an oven at low heat. Just be careful not to overheat, which can dry it out.

FAQs

Can I use butter instead of margarine or flora buttery?

Absolutely! Real butter will add a richer flavor and works perfectly in this vanilla sponge recipe. Just ensure it’s softened to room temperature for easy creaming with the sugar.

What if I don’t have self-raising flour?

You can make your own by combining plain flour with baking powder—typically 1 cup of plain flour plus 1 1/2 teaspoons of baking powder equals 1 cup of self-raising flour.

Why should I make a dip in the center of the batter before baking?

Creating a small dip helps ensure the cake bakes evenly and prevents an overly domed top, giving you a flatter surface that’s easier to decorate and stack.

Can I double this recipe for a larger cake?

Definitely! Just remember to bake in a larger tin or multiple 5-inch tins, adjusting bake time accordingly and testing doneness with a skewer.

Is this cake suitable for freezing with frosting?

For best results, freeze the plain sponge and add frosting once fully thawed. Freezing frosted cakes can sometimes affect texture and appearance.

Final Thoughts

Making this Bento Cake Recipe 5″ Vanilla Sponge Recipe is a joyful experience that yields a truly delightful vanilla cake perfect for any occasion. It’s simple, flavorful, and endlessly versatile, so don’t hesitate to give it a try and share the love with friends and family. Once you see how soft and tender it turns out, this recipe will surely earn a permanent place in your baking repertoire!

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Bento Cake Recipe 5″ Vanilla Sponge Recipe

Bento Cake Recipe 5" Vanilla Sponge Recipe

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4.1 from 7 reviews

This classic 5-inch Vanilla Sponge Bento Cake recipe yields a light and fluffy vanilla-flavored sponge perfect for layering and decorating. With simple ingredients and straightforward steps, it is ideal for creating personalized mini celebration cakes or bento desserts.

  • Author: Paula
  • Prep Time: 10 minutes
  • Cook Time: 25 minutes
  • Total Time: 35 minutes
  • Yield: 8 servings
  • Category: Baking
  • Method: Baking
  • Cuisine: Western

Ingredients

Ingredients

  • 100 g flora buttery/margarine (softened, taken out of the fridge for around an hour before using)
  • 100 g caster sugar
  • 1/2 tsp vanilla extract
  • 2 large eggs
  • 100 g self-raising flour

Instructions

  1. Preheat Oven: Preheat your oven to 160°C for a fan oven, 180°C for a non-fan oven, or gas mark 4.
  2. Prepare Cake Tins: Line two 5-inch cake tins. Grease the tins with butter and sprinkle with flour, or alternatively use greaseproof paper to prevent sticking.
  3. Cream Butter and Sugar: In a mixing bowl, cream the softened butter and caster sugar together thoroughly using a hand mixer until the mixture turns lighter in color and is fluffy.
  4. Add Eggs and Vanilla: Gradually add the eggs and vanilla extract into the creamed mixture. If the mixture starts to curdle, you may add a small amount of flour to stabilize, but this is usually not necessary.
  5. Fold in Flour: Once all eggs are incorporated, gently fold in the self-raising flour using a spatula, ensuring to scrape down the sides of the bowl to combine all ingredients evenly without overmixing.
  6. Divide Batter: Pour the batter evenly into the prepared cake tins. For an even bake, use a weighing scale to split the batter equally between the tins.
  7. Smooth Batter: Make a small dip in the center of the batter in each tin to prevent the cakes from doming excessively while baking.
  8. Bake the Cakes: Place the tins in the preheated oven and bake for approximately 25 minutes. The cakes are done when a skewer inserted comes out clean.
  9. Cool in Tins: Let the cakes cool in their tins for about 10 minutes before carefully removing them onto a cooling rack.
  10. Final Cooling and Storage: Allow the cakes to cool completely. Once cooled, wrap them tightly in cling film to keep fresh until you are ready to level, fill, and decorate.

Notes

  • Ensure the butter is softened to room temperature for easier creaming.
  • Use a scale to evenly distribute batter for uniform cake layers.
  • Be careful not to overmix after adding flour to keep the sponge light and airy.
  • Allow cakes to cool completely before wrapping to avoid condensation and sogginess.
  • This sponge is perfect for creating personalized bento cakes or small celebration cakes with your favorite fillings and frostings.

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