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4 Ingredients! Japanese Castella Cake

5 from 8 votes
Prep: 10 minutes
Cook: 40 minutes
Total: 50 minutes
Servings: 14 slices
Author: Juri Austin
Japanese castella cake is a moist and sweet sponge cake that can be made easily with 5 ingredients! Let's learn how to make it!
切り分けられた米粉のカステラ

Equipment

  • Cake pan 15x15 cm (6x6 inches), (or loaf pan)
  • Hand mixer, (or stand mixer)

Ingredients
  

  • 3 Eggs
  • 70 g Sugar, 120ml
  • Tbsp Honey, 30g
  • 2 Tbsp Water, 30g
  • 100 g All-purpose flour, 190ml
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Instructions
 

  1. Preparation: Preheat the oven to 180°C (356°F). Line a square cake pan with parchment paper.
  2. Whip Eggs: In a large bowl, combine the eggs and sugar. Place the bowl over a tray of hot water (or use a double boiler) and whip with a hand mixer on high speed for 3–4 minutes until the mixture becomes thick.
  3. Make the Batter: In a small bowl, mix honey and water. Add this to the egg mixture and whisk on low speed until combined. Sift the flour over the mixture and gently fold it in with a spatula until just incorporated—be careful not to deflate the batter.
  4. Bake: Pour the batter into the prepared cake pan. Tap the pan lightly on the counter to remove air bubbles. Bake at 180°C (356°F) for 15 minutes, then cover with aluminum foil and continue baking at 160°C (320°F) for 25 minutes.
  5. Wrap & Rest: Let the cake cool slightly, then remove the parchment paper. Wrap the cake tightly in plastic wrap, turn it upside down, and let it rest for at least 12 hours before slicing. This step helps develop its signature moist texture.
  6. Serve: Remove the wrap, slice the cake, and enjoy its soft, fluffy texture!

Video

Notes

  • Storage: It will last for 3 to 4 days in the fridge and one month in the freezer.
  • Substitute: You can substitute all-purpose flour with rice flour.
  • It is easier to mix by adding it twice instead of adding it all at once.
  • If the surface color is not brown enough, please extend the baking time until browned.
  • You can eat it right away, but leaving it for half a day will make it more moist and tasty.
  • How to make it is the same as matcha castella (without matcha powder), so please check out this video for instructions.

Nutrition

Serving: 1sliceCalories: 67kcalCarbohydrates: 12.6gProtein: 1.8g

This nutritional information is estimated and provided for general reference only.

Course: Dessert
Cuisine: Japanese
Keyword: Japanese castella cake

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