Matcha Castella Cake (Japanese Sponge Cake)
Serves 14
10 mins prep
40 mins cook
50 mins total
This easy Matcha Castella Cake is soft, fluffy, and full of gentle matcha flavor. Mix the batter until airy, bake slowly, and enjoy a light, perfectly balanced Japanese sponge cake!
Preparation: Preheat the oven to 180°C (356°F). Line a square cake pan with parchment paper.
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.
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 and matcha powder over the mixture and gently fold it in with a spatula until just incorporated.
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.
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 a few hours before slicing.
Serve: Remove the wrap, slice the cake, and enjoy its soft, fluffy texture!