Japanese Castella Cupcakes are soft, airy, and delicately sweet with a smooth, fine crumb. Inspired by traditional Castella cake, these mini versions are light, slightly jiggly, and incredibly satisfying.
📝 Ingredients
- 1 cup (120g) cake flour (sifted)
- 4 large eggs (room temperature, separated)
- ½ cup (100g) granulated sugar (divided)
- 2 tablespoons (30 ml) honey
- ¼ cup (60 ml) whole milk
- 2 tablespoons (30g) unsalted butter
- 1 teaspoon vanilla extract
- ¼ teaspoon salt
- ½ teaspoon cream of tartar (optional)
👨🍳 Instructions
1. Preheat the Oven
Preheat your oven to 160°C (320°F).
Line a cupcake or mini loaf pan with paper liners.
2. Warm Milk Mixture
In a small saucepan:
- Heat milk and butter until melted
- Remove from heat and mix in honey and vanilla
Let it cool slightly.
3. Prepare Egg Yolks
In a bowl:
- Whisk egg yolks with a portion of the sugar (about half)
- Mix until pale and smooth
Add the warm milk mixture and mix well.
4. Add Flour
Sift in the cake flour and mix gently until smooth and lump-free.
5. Make the Meringue
In a clean bowl:
- Beat egg whites with salt until foamy
- Add cream of tartar
- Gradually add remaining sugar
Beat until soft peaks form.
6. Fold the Batter
- Add meringue into the batter in 2–3 additions
- Fold gently using a spatula
👉 Keep the batter light and airy.
7. Bake
- Fill molds about 80% full
- Tap lightly to remove air bubbles
Bake for 20–25 minutes, until tops are lightly golden.
8. Cool
Remove from the pan and let cool on a wire rack.
🔥 Tips for Best Results
- Use cake flour for a soft texture
- Do not overbeat egg whites
- Fold gently to maintain air
- Avoid overbaking to keep moisture
- Use room temperature eggs
❓ FAQ
1. Why are my cupcakes dense?
The meringue may not have been whipped properly or was overmixed.
2. Can I skip honey?
Honey adds flavor and moisture, but you can replace it with sugar if needed.
3. Why are they not fluffy?
Overmixing or deflating the batter can reduce fluffiness.
4. How should I store them?
- Room temperature: up to 2 days
- Refrigerator: up to 4 days
5. Can I freeze Castella cupcakes?
Yes, store in an airtight container and freeze for up to 1 month.
💛 Final Thoughts
These Japanese Castella Cupcakes are:
- Light and airy
- Soft and delicate
- Perfectly balanced in sweetness
A simple yet elegant treat that melts in your mouth.
