Yogurt Castella Cake (Step-by-Step Recipe + FAQ)

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  • April 24, 2026

🧾 Ingredients

  • 5 egg yolks
  • 5 egg whites
  • 75 g cake flour
  • 140 ml Greek yogurt
  • 60 ml vegetable oil
  • 65 g caster sugar
  • 450–500 ml hot water (for water bath)

👨‍🍳 Step-by-Step Instructions

Step 1: Preparation

  • Preheat your oven to 150–160°C (300–320°F)
  • Line a cake pan (preferably 6–7 inch) with parchment paper
  • Prepare a larger tray for the water bath

Step 2: Make the Yolks Batter

  • In a bowl, mix egg yolks + yogurt + oil until smooth
  • Sift in the cake flour
  • Mix gently until you get a lump-free batter

Step 3: Make the Meringue

  • In another bowl, beat egg whites
  • Add sugar in 3 parts while beating
  • Beat until you get soft peaks (not stiff)

Step 4: Combine

  • Add 1/3 of the meringue into the yolk batter and mix
  • Gently fold in the remaining meringue
  • Do not overmix (keep it airy)

Step 5: Bake (Water Bath Method)

  • Pour batter into the lined pan
  • Place it inside a larger tray
  • Pour hot water into the tray (about 1–2 inches high)
  • Bake for 60–70 minutes

Step 6: Cool

  • Let the cake cool in the pan for 10–15 minutes
  • Remove and cool completely before slicing

 

 

 

 

❓ FAQ

1. Why use a water bath?

It keeps the cake moist, soft, and prevents cracking.

2. Why did my cake collapse?

  • Overmixing batter
  • Meringue too weak or too stiff
  • Sudden temperature change after baking

3. Can I use regular yogurt instead of Greek yogurt?

Yes, but strain it first to remove excess water.

4. How do I know it’s done?

  • Top is golden
  • Toothpick comes out clean
  • Cake springs back when touched

5. How to store it?

  • Room temperature: 1 day (covered)
  • Refrigerator: up to 3 days (airtight)

6. Why is my cake dense?

  • Meringue was not properly whipped
  • Batter was overmixed
  • Oven temperature too high