How to Make Castella Cake: A Step-by-Step Guide






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Castella cake is a popular Japanese sponge cake that has a fluffy and moist texture. It is a simple yet delightful dessert that can be enjoyed with tea or coffee. Making Castella cake at home might seem like a daunting task, but it is actually quite easy with the right ingredients and techniques. In this article, we will provide you with a step-by-step guide on how to make castella cake from scratch. We will cover everything you need to know, from the ingredients to the equipment required, as well as tips on how to achieve the perfect texture and taste. Whether you are a beginner or an experienced baker, you will be able to create a delicious Castella cake with this guide. Let’s dive in!

Ingredients Needed for Castella Cake


Castella cake is a traditional Japanese sponge cake that has been enjoyed for centuries. It’s made with simple ingredients and has a sweet, fluffy texture that makes it perfect for any occasion. To make this delicious cake, you will need a few key ingredients that are easy to find at your local grocery store.


The main ingredient in Castella cake is flour. You can use either all-purpose flour or cake flour, but the latter will give you a softer and fluffier texture. The amount of flour required depends on the recipe you’re using, but generally, it ranges from 100-200g.


Eggs are another essential ingredient in Castella cakes. They provide structure and help to create the light and airy texture of the cake. Most recipes call for eggs to be separated into yolks and whites, as this allows them to be incorporated into the batter properly.


Sugar is needed in Castella cakes to provide sweetness and also helps with browning during baking. Generally, granulated sugar is used in most recipes – around 150-250g depending on how sweet you like your cake.


Honey can be used as an alternative or addition to sugar when making Castella cakes since it provides natural sweetness while enhancing flavor complexity from different types of honey available; however due diligence should be observed as substituting honey with sugar may affect consistency if not adjusted accordingly.


Milk adds moisture and richness to your castella cake recipe; usually full-fat milk is preferred by most bakers because it gives an extra creaminess which complements other flavors well while using less milk gives drier results which might not meet some people’s preferences especially those who like their cakes moistened up more than others do.

These are some of the key ingredients needed when making castella cakes. By having all of these ingredients in your pantry, you can easily whip up a delicious and fluffy cake that everyone will love. With the right recipe and proper techniques, you can make Castella cakes like a pro!

Preparing Your Baking Equipment

Before you start making your castella cake, it’s essential to have all the necessary baking equipment ready. Here are some of the essential tools you’ll need:

Baking Pans

Castella cakes are traditionally baked in rectangular or square pans. It’s recommended to use a pan that is at least 8 inches long and 4 inches wide. A non-stick baking pan is preferred as this will prevent your cake from sticking to the bottom.

Parchment Paper

Lining your pans with parchment paper helps ensure that your Castella cake doesn’t stick and makes it easier to remove from the pan after baking.


A sifter will help you achieve a smooth, lump-free batter by evenly distributing flour, sugar, and other dry ingredients while removing any lumps or impurities in them.


You will need a whisk for mixing eggs into yolks and whites separately so they can be folded into the batter properly without breaking down its structure.

Mixing Bowls

Having enough mixing bowls comes in handy when preparing different ingredients as well as when separating eggs; usually two medium-sized bowls should suffice for most recipes because they would be able to accommodate both egg yolk and whites comfortably without spilling over due to their size constraints.

Electric Mixer

An electric mixer is an optional item but using one saves time compared with hand whisking; however if manual mixing is what you prefer then go ahead since both methods work fine – albeit manual whipping takes more time than the electric version does.

Making the Batter for Castella Cake

Now that you have your ingredients and equipment ready, it’s time to start making the batter for your Castella cake. Here is a step-by-step guide on how to make the perfect batter:

Separate the Eggs

The first step in making Castella cake is to separate the eggs. You will need three large eggs, and they should be at room temperature before separating them.

Beat Egg Yolks & Sugar

Take a mixing bowl and beat egg yolks with sugar until they become pale yellow in color. This process helps in incorporating air into the mixture, which is essential for achieving a fluffy texture.

Add Honey & Milk

At this stage, add honey and milk to your egg yolk mixture while stirring thoroughly until everything is well combined.

Sift Flour

In another bowl or using a sifter directly over your mixing bowl of egg yolks mixture sift flour (preferably cake flour) gradually while stirring continuously until no lumps are left behind; this helps ensure there are no clumps in your batter and also gives it a finer texture.

Whisk Egg Whites

In another clean mixing bowl whisk egg whites until stiff peaks form; usually takes about 5-7 minutes depending on how powerful your mixer or manual whisking skills are – but keep an eye out not to over-whisk them since doing so may lead to dry results once incorporated into batter later on!

Fold Egg Whites into Mixture

Once you’ve got stiff peaks forming with egg whites fold them gently into the egg yolk mixture using a spatula or wooden spoon ensuring no lumps remain after folding; this ensures that all ingredients combine well without breaking down its structure.

Baking and Serving Your Castella Cake

After making your batter, it’s time to bake and serve your Castella cake. Here are some steps to follow:

Preheat Oven

Before baking, preheat your oven to 170°C/325°F for about 10-15 minutes.

Prepare Baking Pans

Line your baking pan with parchment paper ensuring that the paper is large enough to cover the sides and bottom surface of the pan; this will help prevent sticking when removing the cake after baking.

Pour Batter into Pan

Pour in your batter mixture into the prepared pan while smoothing out its top surface using a spatula or scraper; ensure that it spreads evenly across all corners without leaving any bubbles or air pockets behind.

Bake Your Cake

Place your pan into a preheated oven for around 40-50 minutes depending on size until it becomes golden brown on top while also testing with a toothpick in its center which should come out clean if done properly; remove from heat once done then let cool down before serving.

Serving Your Castella Cake

Once cooled down, carefully remove parchment paper from sides and bottom of cake then cut slices using a sharp knife or serrated edge one piece at a time before serving onto plates; dust powdered sugar over each slice if desired giving it an extra touch of sweetness.

Tips and Tricks for Perfecting Your Castella Cake Recipe

Making a perfect castella cake takes practice, but with these tips and tricks, you can improve your recipe:

Use High-Quality Ingredients

Using high-quality ingredients ensures that your cake has the best flavor and texture. Invest in good quality flour, eggs, honey, sugar as well as milk to ensure the best possible results.

Room Temperature Eggs

Always use room temperature eggs since they mix better compared to cold ones; this is because cold eggs can cause clumping when whipped with sugar leading to uneven texture once baked.

Whisking Egg Whites

When whisking egg whites separate from yolks make sure there’s no trace of yolk left behind as it may interfere with the process of forming stiff peaks which makes an essential part of Castella cakes’ structure; also avoid over-whisking them since it leads to dry results once incorporated into batter later on!

Fold Egg Whites Gently

When folding egg whites into batter mixture do so gently using a spatula or wooden spoon ensuring not to break apart its structure by over-mixing or stirring too vigorously.

Sifting Dry Ingredients

Sift flour (preferably cake flour) gradually while stirring continuously until no lumps are left behind; this helps ensure there are no clumps in your batter and also gives it a finer texture.

Baking Time & Temperature

The ideal baking temperature for castella cakes is 170°C/325°F. However, each oven varies differently; always keep an eye on your oven during baking times – most recipes call for around 40-50 minutes depending on size but start checking after 30 minutes just in case.


What ingredients do I need to make a castella cake?

To make a castella cake, you will need eggs, sugar, flour, and honey. You’ll also need some baking powder, water, and vegetable oil. The key to making a successful castella cake is to use high-quality ingredients and to follow the recipe closely. Make sure you measure all your ingredients carefully, and use room temperature eggs to ensure a smooth batter.

How do I make sure my castella cake turns out light and fluffy?

There are a few tricks to making a light and fluffy castella cake. First, make sure you beat your eggs until they are very light and frothy. You can use a stand mixer, hand mixer, or whisk to do this. Then, gradually add your sugar while continuing to beat the eggs. This will help to create a light and airy texture. When you fold in the dry ingredients, do it slowly and gently to avoid deflating the batter.

Do I need a special pan to make a castella cake?

No, you don’t need a special pan to make a castella cake, but using a rectangular pan will give you the traditional shape. You can use any pan that is oven-safe and has a flat bottom. You’ll need to line the pan with parchment paper to prevent the cake from sticking. If you don’t have a rectangular pan, you can use a round or square one instead, but be aware that this may affect the baking time and the overall appearance of the cake.

How long does it take to make a castella cake?

The total time to make a castella cake is around 2 hours, including prep and bake time. It will take about 30-45 minutes to prepare the batter, and another 45-55 minutes to bake the cake. The cake needs to cool in the pan for at least 10 minutes before you turn it out onto a wire rack to cool completely. Once the cake has cooled, you can slice it and enjoy!

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